zoology solved question paper for UPSC Civil Services IAS Exam
1. Which one of the following gives the best overall picture of the functional nature of community?
(a) Pyramid of biomass
(b) Pyramid of energy
(c) Pyramid of numbers
(d) Food-web
Ans. (d)
(a) Pyramid of biomass
(b) Pyramid of energy
(c) Pyramid of numbers
(d) Food-web
Ans. (d)
2. The most important set of characteristics of the deep sea include:
(a) low temperature, low pressure and oxygen level
(b) high temperature, high pressure and high oxygen level
(c) low temperature, high pressure and low oxygen level
(d) high temperature, low pressure and high oxygen level
Ans. (c)
(a) low temperature, low pressure and oxygen level
(b) high temperature, high pressure and high oxygen level
(c) low temperature, high pressure and low oxygen level
(d) high temperature, low pressure and high oxygen level
Ans. (c)
3. Compensation level in an aquatic Ecosystem is the one where oxygen
(a) and carbon-dioxide are in equal proportion
(b) level is just sufficient to maintain producers
(c) level is just sufficient to maintain decomposers
(d) release in photosynthesis balances loss by respiration
Ans. (b)
(a) and carbon-dioxide are in equal proportion
(b) level is just sufficient to maintain producers
(c) level is just sufficient to maintain decomposers
(d) release in photosynthesis balances loss by respiration
Ans. (b)
4. When an animal population produces a substance harmful to a competing population the interaction is known as
(a) allelopathy
(b) antibiosis
(c) pathogenesis
(d) interference
Ans. (b)
(a) allelopathy
(b) antibiosis
(c) pathogenesis
(d) interference
Ans. (b)
5. Consider the following desert adaptations
(i) Copius Salivation and licking of body.
(ii) High tolerance of dehydration.
(iii) High storage capacity of water.
(iv) Fluctuating body temperature.
The set of adaptations relevant to the case of camel would include:
(a) i, iii and iv
(b) i, ii and iv
(c) i, ii and iii
(d) ii, iii and iv
Ans. (d)
(i) Copius Salivation and licking of body.
(ii) High tolerance of dehydration.
(iii) High storage capacity of water.
(iv) Fluctuating body temperature.
The set of adaptations relevant to the case of camel would include:
(a) i, iii and iv
(b) i, ii and iv
(c) i, ii and iii
(d) ii, iii and iv
Ans. (d)
6. Consider the following statements:
Desert animals tide over the external heat by
(i) Adopting appropriate nocturnal habits.
(ii) Burrowing
(iii) Adjusting their internal body; temperature suitably. Of these statements:
(a) i and ii are correct
(b) ii and iii are correct
(c) i and iii are correct
(d) i, ii and iii are correct
Ans. (d)
Desert animals tide over the external heat by
(i) Adopting appropriate nocturnal habits.
(ii) Burrowing
(iii) Adjusting their internal body; temperature suitably. Of these statements:
(a) i and ii are correct
(b) ii and iii are correct
(c) i and iii are correct
(d) i, ii and iii are correct
Ans. (d)
7. The association between ungulates (such as cattle) and rumen bacteria is a well known example of
(a) antibiosis
(b) parasitism
(c) obligate symbiosis
(d) neutralization
Ans. (c)
(a) antibiosis
(b) parasitism
(c) obligate symbiosis
(d) neutralization
Ans. (c)
8. Consider the following species:
(i) Sloth bear
(ii) Musk deer
(iii) Bison
(iv) Black buck
The endangered species among these indude:
(a) ii, iii and iv
(b) i iii and iv
(c) i, ii and iv
(d) i, ii and iii
Ans. (a)
(i) Sloth bear
(ii) Musk deer
(iii) Bison
(iv) Black buck
The endangered species among these indude:
(a) ii, iii and iv
(b) i iii and iv
(c) i, ii and iv
(d) i, ii and iii
Ans. (a)
9. Fruit flies emerge from pupal stage at dawn even after fifteen generations of flies reared under conditions of constant height. This is due to
(a) diurnal endogenous rhythm
(b) diurnal exogenous rhythm
(c) lunar endogenous rhythm
(d) lunar exogenous rhythm
Ans. (a)
(a) diurnal endogenous rhythm
(b) diurnal exogenous rhythm
(c) lunar endogenous rhythm
(d) lunar exogenous rhythm
Ans. (a)
10. Which one of the following is a group of major green house gases?
(a) Carbon monoxide, methane, chlorofluro carbons and oxides of nitrogen
(b) Carbon dioxide, oxides of nitrogen, ethane and chlorofluro carbons
(c) Carbon dioxide, methane, chlorofluro carbons and oxides of nitrogen
(d) Ethane, oxides of nitrogen, carbon monoxide and chlorofluro carbons
Ans. (c)
(a) Carbon monoxide, methane, chlorofluro carbons and oxides of nitrogen
(b) Carbon dioxide, oxides of nitrogen, ethane and chlorofluro carbons
(c) Carbon dioxide, methane, chlorofluro carbons and oxides of nitrogen
(d) Ethane, oxides of nitrogen, carbon monoxide and chlorofluro carbons
Ans. (c)
11. Cirral activity of two barnacles in relation to temperature are given above. Which one of the following is the most appropriate explanation of the figure?
(a) Both the barnacles maintain their activity under narrow range of temperatures
(b) Both the species are more active above 20°C
(c) There is a rapid depression of activity when temperature increases above 6°C
(d) Upper intertidal species show greater thermal tolerance than lower intertidal species
(a) Both the barnacles maintain their activity under narrow range of temperatures
(b) Both the species are more active above 20°C
(c) There is a rapid depression of activity when temperature increases above 6°C
(d) Upper intertidal species show greater thermal tolerance than lower intertidal species
Ans. (d)
12. Which one of the following pairs is not correctly matched?
(a) Cursorial adaptations — Limb bones elongated
(b) Fossorial adaptations — Develops shoulder girdle
(c) Arboreal adaptations — Webbed feet
(d) Volant adaptations — Fusion of certain bones.
Ans. (c)
(a) Cursorial adaptations — Limb bones elongated
(b) Fossorial adaptations — Develops shoulder girdle
(c) Arboreal adaptations — Webbed feet
(d) Volant adaptations — Fusion of certain bones.
Ans. (c)
13. Match list-I (Pollutants) with list-II (Methods of control/recovery) and select the correct answer using the codes given below the lists
List-I List-II
A. Particulate matter 1. Incineration from coal combustion
B. Sulphur oxide fumes 2. Reverse osmosis
C. NO2 from fumes 3. Combustion modification
D. Municipal waste water 4. Scrubber installation
5. Electrostatic precipitators
Codes:
A B C D
(a) 1 3 4 2
(b) 1 3 2 4
(c) 5 4 3 2
(d) 5 4 2 3
Ans. (c)
List-I List-II
A. Particulate matter 1. Incineration from coal combustion
B. Sulphur oxide fumes 2. Reverse osmosis
C. NO2 from fumes 3. Combustion modification
D. Municipal waste water 4. Scrubber installation
5. Electrostatic precipitators
Codes:
A B C D
(a) 1 3 4 2
(b) 1 3 2 4
(c) 5 4 3 2
(d) 5 4 2 3
Ans. (c)
14. Match list-I with list-II and select the correct answer using the codes given below the lists:
List-I List-II
A. Annual rhythm 1. The ability to time and repeat the functions at interval of 15
days.
B. Lunar rhythm 2. The ability to time and repeat the functions at interval of 24
hours.
C. Circadian rhythm 3. The ability to time and repeat the functions every year.
D. Tidal rhythm 4. The ability to time and repeat the functions based on tidal
phase.
Codes:
A B C D
(a) 1 2 3 4
(b) 2 1 3 4
(c) 3 2 4 1
(d) 3 1 2 4
Ans. (d)
List-I List-II
A. Annual rhythm 1. The ability to time and repeat the functions at interval of 15
days.
B. Lunar rhythm 2. The ability to time and repeat the functions at interval of 24
hours.
C. Circadian rhythm 3. The ability to time and repeat the functions every year.
D. Tidal rhythm 4. The ability to time and repeat the functions based on tidal
phase.
Codes:
A B C D
(a) 1 2 3 4
(b) 2 1 3 4
(c) 3 2 4 1
(d) 3 1 2 4
Ans. (d)
15. Which one of the following can achieve protection and conservation of biodiversity?
(a) Eco-development
(b) Biosphere reserve
(c) National park
(d) Game sanctuary
Ans. (a)
(a) Eco-development
(b) Biosphere reserve
(c) National park
(d) Game sanctuary
Ans. (a)
16. The desert animals confine their activities during night time, because they
(a) can see well during the night
(b) get sufficient food during night
(c) have a problem of conservation of water during the day time
(d) face less competition for food during night
Ans. (c)
(a) can see well during the night
(b) get sufficient food during night
(c) have a problem of conservation of water during the day time
(d) face less competition for food during night
Ans. (c)
17. What is the correct sequence of zonation in the lentic environment?
(i) Profundal zone
(ii) Sub-littoral zone
(iii) Littoral zone
Select the correct answer using the codes given below:
(a) i, iii, ii
(b) ii, i, iii
(c) ii, iii, i
(d) iii, ii, i
Ans. (d)
(i) Profundal zone
(ii) Sub-littoral zone
(iii) Littoral zone
Select the correct answer using the codes given below:
(a) i, iii, ii
(b) ii, i, iii
(c) ii, iii, i
(d) iii, ii, i
Ans. (d)
18. Photoperiodism is the
(a) orientation of locomotion by light
(b) movement of the part of the organism with respect to light
(c) response of an organism to the duration of light
(d) movement influenced by the wavelength of light
Ans. (c)
(a) orientation of locomotion by light
(b) movement of the part of the organism with respect to light
(c) response of an organism to the duration of light
(d) movement influenced by the wavelength of light
Ans. (c)
19. Match list-I (Trophic levels) with list-II (Examples) and select the correct answer using the codes given below the lists:
List-I List-II
A. Producers 1. Birds
B. Decomposers 2. Insects
C. Secondary consumers 3. Green plants
D. Primary consumers 4. Fungi
Ans. (b)
List-I List-II
A. Producers 1. Birds
B. Decomposers 2. Insects
C. Secondary consumers 3. Green plants
D. Primary consumers 4. Fungi
Ans. (b)
20. Which one of the following statements is true?
(a) Higher the altitude we go lesser is the pressure, more the depth we go more is the pressure we encounter
(b) Higher the altitude we go higher is the pressure, more the depth we go more is the pressure we encounter
(c) Higher the altitude we go lesser is the pressure, more the depth we go lesser is the pressure we encounter
(d) Higher the altitude we go higher is the pressure, more the depth we go lesser is the pressure we encounter
Ans. (a)
(a) Higher the altitude we go lesser is the pressure, more the depth we go more is the pressure we encounter
(b) Higher the altitude we go higher is the pressure, more the depth we go more is the pressure we encounter
(c) Higher the altitude we go lesser is the pressure, more the depth we go lesser is the pressure we encounter
(d) Higher the altitude we go higher is the pressure, more the depth we go lesser is the pressure we encounter
Ans. (a)
21. Which one of the following is the correct sequential step in the complete process of a primary ecological succession?
(a) Nudation — Competition and reaction — Invasion —, Stabilization
(b) Invasion — Nudation — Competition and reaction — Stabilization
(c) Nudation —, Invasion — Competition and reaction — Stabilization
(d) Invasion — Nudation — Stabilization — Competition and reaction
Ans. (c)
(a) Nudation — Competition and reaction — Invasion —, Stabilization
(b) Invasion — Nudation — Competition and reaction — Stabilization
(c) Nudation —, Invasion — Competition and reaction — Stabilization
(d) Invasion — Nudation — Stabilization — Competition and reaction
Ans. (c)
22. Consider the following statements
Ecological dominants are those species that —
1. Exert major controlling influence.
2. Live in a community.
3. Affect the environment of all other species.
4. Control the energy flow.
Which of the above statements is/are correct?
(a) 1 alone
(b) 1, 3 and 4
(c) 2 alone
(d) 1, 2, 3 and 4
Ans. (d)
Ecological dominants are those species that —
1. Exert major controlling influence.
2. Live in a community.
3. Affect the environment of all other species.
4. Control the energy flow.
Which of the above statements is/are correct?
(a) 1 alone
(b) 1, 3 and 4
(c) 2 alone
(d) 1, 2, 3 and 4
Ans. (d)
23. Similar niches different communalities or in different regions are commonly occupied by species possessing similar habits, adaptations and adjustments, Such species are called
(a) ecological equivalents
(b) ecotypes
(c) ecological dominants
(d) diverse species
Ans. (b)
(a) ecological equivalents
(b) ecotypes
(c) ecological dominants
(d) diverse species
Ans. (b)
24. Which one of the following statements is not true about energy flow?
(a) Energy flow is greatly reduced at each successive trophic level from producers to herbivores and then to carnivores
(b) The energy captured by the autotrophs does not revert back to solar input
(c) There is unidirectional flow of energy
(d) The pyramids of energy are both top right and inverted
Ans. (d)
(a) Energy flow is greatly reduced at each successive trophic level from producers to herbivores and then to carnivores
(b) The energy captured by the autotrophs does not revert back to solar input
(c) There is unidirectional flow of energy
(d) The pyramids of energy are both top right and inverted
Ans. (d)
25. Ratios between energy flow at different points along the food chains when expressed as percentages, are called
(a) energy flow efficiencies
(b) ecological efficiencies
(c) relative ratio of energy flow
(d) ecological gradients
Ans. (b)
(a) energy flow efficiencies
(b) ecological efficiencies
(c) relative ratio of energy flow
(d) ecological gradients
Ans. (b)
26. Productivity is the amount of organic matter produced
(a) per day
(b) per unit area per unit time
(c) during photo-period of the day
(d) per unit area in twelve hours of photo period
Ans. (b)
(a) per day
(b) per unit area per unit time
(c) during photo-period of the day
(d) per unit area in twelve hours of photo period
Ans. (b)
27. The total output of photosynthesis, including the organic matter used up in respiration during the period of measurement, is called
(a) net primary productivity
(b) gross primary productivity
(c) net community productivity
(d) secondary productivity
Ans.(b)
(a) net primary productivity
(b) gross primary productivity
(c) net community productivity
(d) secondary productivity
Ans.(b)
28. In the animal kingdom, several degree of Interspecific interactions can be recognized. Which one of the following is true for protocooperation interactions?
(a) Both partners gain but neither can survive without the other
(b) One of the species is harmed by the relationship
(c) Presence of one species appears to have no effect on a second species
(d) Both partners gain, though each is able to survive separately
Ans. (d)
(a) Both partners gain but neither can survive without the other
(b) One of the species is harmed by the relationship
(c) Presence of one species appears to have no effect on a second species
(d) Both partners gain, though each is able to survive separately
Ans. (d)
29. Deserts constitute the most extreme of all the terrestrial environments. Communities living her demand which of the following special adaptations?
(i) Morphological
(ii) Physiological
(ii) Ethological
Select the correct answer using the codes given below:
Codes:
(a) i and ii
(b) i and iii
(c) ii and iii
(d) i, ii and iii
Ans. (a)
(i) Morphological
(ii) Physiological
(ii) Ethological
Select the correct answer using the codes given below:
Codes:
(a) i and ii
(b) i and iii
(c) ii and iii
(d) i, ii and iii
Ans. (a)
30. Old world cuckoos and the brown-headed cowbird, of North America do not build nests of their own; rather, they deposit their eggs in the nests of other birds. This type of relationship is designated as
(a) mutualism
(b) commensalisms
(c) social parasitism
(d) symbiosis
Ans. (b)
(a) mutualism
(b) commensalisms
(c) social parasitism
(d) symbiosis
Ans. (b)
31. Which one of the following pairs is not correctly matched?
(a) Hoolock gibbon — Arunachal Pradesh
(b) Golden langur — North-West Assam
(c) Lion-tailed macaque — Sikkim
(d) Slender loris — Southern India
Ans. (c)
(a) Hoolock gibbon — Arunachal Pradesh
(b) Golden langur — North-West Assam
(c) Lion-tailed macaque — Sikkim
(d) Slender loris — Southern India
Ans. (c)
32. Circadian rhythm is the ability to time and repeat functions at
(a) about 24-hour intervals linked to daylight
(b) one year intervals linked to changes in the seasons
(c) 24-hour intervals even without environmental cues such as daylight
(d) one month intervals without environmental cues such as daylight
Ans. (a)
(a) about 24-hour intervals linked to daylight
(b) one year intervals linked to changes in the seasons
(c) 24-hour intervals even without environmental cues such as daylight
(d) one month intervals without environmental cues such as daylight
Ans. (a)
33. Which list-I (pesticide) with list-II (chemical nature) and select the correct answer using the codes given below the lists:
List-I List-II
A. Aldrin 1. Synthetic pyrethroid
B. Fenvalerate 2. Carbamate
C. Parathion 3. Chlorinated hydrocarbon
D. Aldicarb 4. Organophosphate
Codes:
A B C D
(a) 3 1 2 4
(b) 3 1 4 2
(c) 1 2 4 3
(d) 2 1 3 4
Ans. (b)
List-I List-II
A. Aldrin 1. Synthetic pyrethroid
B. Fenvalerate 2. Carbamate
C. Parathion 3. Chlorinated hydrocarbon
D. Aldicarb 4. Organophosphate
Codes:
A B C D
(a) 3 1 2 4
(b) 3 1 4 2
(c) 1 2 4 3
(d) 2 1 3 4
Ans. (b)
34. The number of links in a food chain depends upon the
(a) number of organisms is an ecosystem
(b) number of producers in an ecosystem
(c) length of food chain in an ecosystem
(d) length of day
Ans. (a)
(a) number of organisms is an ecosystem
(b) number of producers in an ecosystem
(c) length of food chain in an ecosystem
(d) length of day
Ans. (a)
35. The eulittoral zone provides which one of the following sets major habitats?
(a) Rocky, sandy and muddy shores
(b) Submerged rocks, rocks with loose stones and mud
(c) Benthic, deep sea and estuary
(d) Abyssal, sandy and rocky
Ans. (b)
(a) Rocky, sandy and muddy shores
(b) Submerged rocks, rocks with loose stones and mud
(c) Benthic, deep sea and estuary
(d) Abyssal, sandy and rocky
Ans. (b)
36. A river bed form its origin to its mouth is a
(a) smooth curve
(b) irregular curve
(c) acute curve in beginning following smooth curve
(d) acute curve for most of the route followed by a small smooth curve
Ans. (d)
(a) smooth curve
(b) irregular curve
(c) acute curve in beginning following smooth curve
(d) acute curve for most of the route followed by a small smooth curve
Ans. (d)
37. The alpine biome refers to a distinct flora and fauna which characterizes the region
(a) below the timber line of the mountains
(b) above the timber line of the mountains
(c) between the sub-show zone and the meadow zone of the mountains
(d) between the snow zone and sub-snow zone of the mountains
Ans. (d)
(a) below the timber line of the mountains
(b) above the timber line of the mountains
(c) between the sub-show zone and the meadow zone of the mountains
(d) between the snow zone and sub-snow zone of the mountains
Ans. (d)
38. Consider the following pairs
(i) Bathyal zone : Archibenthic zone
(ii) Littoral zone : Limenttic zone
(iii) Oceanic zone : Sub-littoral zone
Which of these pairs are correctly matched?
(a) i, ii and iii
(b) i and iii
(c) i and ii
(d) ii and iii
Smog is caused by the
(a) Depletion of ozone layer
(b) Presence of high humidity in the atmosphere
(c) Rapid accumulation of CO2 in the atmosphere
(d) Rapid build-up of products of photochemical oxidation of pollutants in the atmosphere
Ans. (d)
(i) Bathyal zone : Archibenthic zone
(ii) Littoral zone : Limenttic zone
(iii) Oceanic zone : Sub-littoral zone
Which of these pairs are correctly matched?
(a) i, ii and iii
(b) i and iii
(c) i and ii
(d) ii and iii
Smog is caused by the
(a) Depletion of ozone layer
(b) Presence of high humidity in the atmosphere
(c) Rapid accumulation of CO2 in the atmosphere
(d) Rapid build-up of products of photochemical oxidation of pollutants in the atmosphere
Ans. (d)
39. Running water communities of clean hill streams are characterized by the predominance of
(a) ephemeroptera
(b) coleoptera
(c) diptera
(d) megaloptera
Ans. (a)
(a) ephemeroptera
(b) coleoptera
(c) diptera
(d) megaloptera
Ans. (a)
40. For green house effect, which of the following statements are correct?
(i) Intensive plantation can produce large amount of CO2 which traps heat and produces the green house effect.
(ii) Extensive use of fossil fuel and intensive plantation result in the production of large amount of CO2 and H2Oforming a thick layer that prevents the heat from being radiated out.
(iii) Excessive use of fossil fuel produces heat, which is absorbed by the CO2 and water vapor in the atmosphere and causes green house effect.
(iv) Increasing level of CO2 tends to warm air in the lower layer of the atmosphere on global scale resulting in global warming.
Select the correct answer using the codes given below:
Codes:
(a) i and ii
(b) ii and iii
(c) iii and iv
(d) i and iv
Ans. (c)
(i) Intensive plantation can produce large amount of CO2 which traps heat and produces the green house effect.
(ii) Extensive use of fossil fuel and intensive plantation result in the production of large amount of CO2 and H2Oforming a thick layer that prevents the heat from being radiated out.
(iii) Excessive use of fossil fuel produces heat, which is absorbed by the CO2 and water vapor in the atmosphere and causes green house effect.
(iv) Increasing level of CO2 tends to warm air in the lower layer of the atmosphere on global scale resulting in global warming.
Select the correct answer using the codes given below:
Codes:
(a) i and ii
(b) ii and iii
(c) iii and iv
(d) i and iv
Ans. (c)
41. Match list-I (Survivorship curves) with list-II (Mortality) and select the correct answer using the codes given below the lists:
A B C
(a) 2 1 3
(b) 2 3 1
(c) 1 2 3
(d) 3 2 1
Ans. (b)
(a) 2 1 3
(b) 2 3 1
(c) 1 2 3
(d) 3 2 1
Ans. (b)
42. Match list-I (Name of species) with list-II (Categories) and select the correct answer using the codes given below the lists
List-I (Name of species) List-II (Categories)
A. Leopard 1. Out of danger
B. Asiatic lion 2. Rare
C. Golden cat 3. Vulnerable
D. Elephant 4. Endangered
Codes:
A B C D
(a) 3 4 1 2
(b) 3 4 2 1
(c) 4 3 2 1
(d) 4 3 1 2
Ans. (c)
List-I (Name of species) List-II (Categories)
A. Leopard 1. Out of danger
B. Asiatic lion 2. Rare
C. Golden cat 3. Vulnerable
D. Elephant 4. Endangered
Codes:
A B C D
(a) 3 4 1 2
(b) 3 4 2 1
(c) 4 3 2 1
(d) 4 3 1 2
Ans. (c)
43. Consider the following statements
Circannual rhythm in an organism is:
(i) Regulated by temperature.
(ii) Regulated by photoperiod.
(iii) An innate character imprinted upon the organism by the environment.
(iv) An acquired character developed by he animals in response to the frequent changes in the environment.
Which of the above statements are correct?
(a) i and ii
(b) ii and iv
(c) ii and iv
(d) i and iv
Ans. (c)
Circannual rhythm in an organism is:
(i) Regulated by temperature.
(ii) Regulated by photoperiod.
(iii) An innate character imprinted upon the organism by the environment.
(iv) An acquired character developed by he animals in response to the frequent changes in the environment.
Which of the above statements are correct?
(a) i and ii
(b) ii and iv
(c) ii and iv
(d) i and iv
Ans. (c)
44. Match list-I (Name of the animal) with list-II (Name of the sanctuary’ area) and select the correct answer using the codes given below the lists
List-I List-II
A. Wild ass 1. Dachigam
B. Hangul 2. Nilgiri, Annamalai and Cardamom hills
C. Lion tailed macaque 3. Rajasthan
D. Great Indian Bustard 4. Rann of Kutch
Codes:
A B C D
(a) 1 4 2 3
(b) 4 1 3 2
(c) 1 4 3 2
(d) 4 1 2 3
Ans. (d)
List-I List-II
A. Wild ass 1. Dachigam
B. Hangul 2. Nilgiri, Annamalai and Cardamom hills
C. Lion tailed macaque 3. Rajasthan
D. Great Indian Bustard 4. Rann of Kutch
Codes:
A B C D
(a) 1 4 2 3
(b) 4 1 3 2
(c) 1 4 3 2
(d) 4 1 2 3
Ans. (d)
45. When relatively palpable and unprotected species of animal imitates the relatively unpalable or well protected species, it is called
(a) Mullerian mimicry
(b) Batesian mimicry
(c) Alluring mimicry
(d) Warming mimicry
Ans. (b)
(a) Mullerian mimicry
(b) Batesian mimicry
(c) Alluring mimicry
(d) Warming mimicry
Ans. (b)
46. In most birds, after batching, the young ones normally being to follow their mothers. The type of behaviour is known as
(a) imprinting
(b) reflex behaviour
(c) parental care
(d) trial and error learning
Ans. (a)
(a) imprinting
(b) reflex behaviour
(c) parental care
(d) trial and error learning
Ans. (a)
47. Lindeman’s law of tropic efficiency states that the efficiency of energy transfer:
(a) from one trophic level too the next is about 60%
(b) from one trophic level too the next is highly variable
(c) is unlimited
(d) from one trophic level to the next is about 10%
Ans. (b)
(a) from one trophic level too the next is about 60%
(b) from one trophic level too the next is highly variable
(c) is unlimited
(d) from one trophic level to the next is about 10%
Ans. (b)
48. Ecological equivalent are the taxonomically different organisms which occupy
(a) same or similar ecological niches performing different functions in the same geographical region
(b) different ecological niches performing similar function in the same geographical region
(c) same or similar ecological niches performing different functions in different geographical regions
(d) same or similar ecological niches performing similar functions indifferent geographical regions
Ans. (d)
(a) same or similar ecological niches performing different functions in the same geographical region
(b) different ecological niches performing similar function in the same geographical region
(c) same or similar ecological niches performing different functions in different geographical regions
(d) same or similar ecological niches performing similar functions indifferent geographical regions
Ans. (d)
49. Match list-I with list-II and select the correct answer using the codes below the list:
List-I List-II
A. Relatively fixed area defined by an animal 1. Habitat
because it contains a valuable resource
B. Clear orientation of communities along a steep 2. Territory
environmental gradient
C. Place when an organism lives 3. Zonation
D. Complete account of how an organism uses its 4. Niche
environment
5. Ecotone
Codes:
A B C D
(a) 5 4 1 3
(b) 2 3 1 4
(c) 2 3 4 1
(d) 3 4 1 5
Ans. (b)
List-I List-II
A. Relatively fixed area defined by an animal 1. Habitat
because it contains a valuable resource
B. Clear orientation of communities along a steep 2. Territory
environmental gradient
C. Place when an organism lives 3. Zonation
D. Complete account of how an organism uses its 4. Niche
environment
5. Ecotone
Codes:
A B C D
(a) 5 4 1 3
(b) 2 3 1 4
(c) 2 3 4 1
(d) 3 4 1 5
Ans. (b)
50. In the population growth curve given below, in which segment the growth
rate dN will be maximum?
dt
(a) 1
(b) 2
(c) 3
(d) 4
Ans. (b)
rate dN will be maximum?
dt
(a) 1
(b) 2
(c) 3
(d) 4
Ans. (b)
......................................................------------------------------......................................................................
Staff nurse Exams Objective questions Zoology
zoology general objective type question for staff nurse exam
staff nurse and pharmacist exam sample paper
Staff Nurse Exam – Objective Type Questions & Answers : Zoology
zoology general objective type question for staff nurse exam
staff nurse and pharmacist exam sample paper
Staff Nurse Exam – Objective Type Questions & Answers : Zoology
1. Lymphoid tissue is found in:
(a) Thymus
(b) Tonsils
(c) Lymph nodes
(d) All of these
Ans. (d)
2. Most widely used bioweapon is:
(a) Bacillus subtilis
(b) Pseudomonas putida
(c) Bacillus anthracis
(d) None of the above
Ans. (c)
3. The vitamin which is essential for blood clotting is
(a) Vitamin-A
(b) Vitamin-B
(c) Vitamin-C
(d) Vitamin-K
Ans. (d)
4. The female genital pore of Pheretima posthuma located upon the segment?
(a) 14th
(b) 16th
(c) 18th
(d) 15th
Ans. (a)
5. Polyp phase is absent in:
(a) Hydra
(b) Aurelia
(c) Physalia
(d) Obelia
Ans. (b)
6. In frog heart, there are cardiac muscles which consist of fibres called
(a) Purkinje fibres
(b) Myonemes
(c) Telodendria
(d) Columnae camae
Ans. (a)
7. Malpighian tubules are:
(a) Excretory organs of insects
(b) Excretory organs of frog
(c) Respiratory organs of insects
(d) Endocrine glands of insects
Ans. (a)
8. Pacemaker is:
(a) AV node
(b) SA node
(c) Bundle of His
(d) Purkinje fibres
Ans. (b)
9. LH and FSH are collectively called:
(a) Oxytocin
(b) Somatotrophins
(c) Luteotrophic
(d) Gonadotrophins
Ans. (d)
10. Who is known as “father of Endocrinology”?
(a) R.H. Whittaker
(b) Pasteur
(c) Einthoven
(d) Thomas Addison
Ans. (d)
11. Which of the following provides most evident proof of evolution?
(a) Fossils
(b) Morphology
(c) Embryo
(d) Vestigial organs
Ans. (a)
12. In Mollusca, eye is present over a stalk, called:
(a) Ostractum
(b) Operculum
(c) Ommatophores
(d) Osphradium
Ans. (c)
13. Among the following, colonial insects are:
(a) Locusts
(b) Mosquitoes
(c) White ants
(d) Bed bug
Ans. (c)
14. In Ascaris, the coelom is:
(a) Schizocoelom
(b) Pseudocoelom
(c) True coelom
(d) Haemocoelom
Ans. (b)
15. ‘Turbellarians’ are free living:
(a) Nematodes
(b) Cestodes
(c) Flat worms
(d) Trematodes
Ans. (c)
16. The characteristic larva of phylum ‘Coelenterata’ is:
(a) Planula
(b) Cysticercus
(c) Rhabdiform
(d) Wriggler
Ans. (a)
17. Podocytes are the cells, present in:
(a) Cortex of nephron
(b) Inner wall of Bowman4s capsule
(c) Outer wall of Bowman s capsule
(d) Wall of glomerular capillaries
Ans. (b)
18. In rabbit, head of epididymis present at the head of the testis is called:
(a) Vas deferens
(b) Cauda epididymis
(c) Gubernaculum
(d) Caput epididymis
Ans. (d)
19. Tendons and ligaments are specialized types of:
(a) Nervous tissue
(b) Muscular tissue
(c) Epithelial tissue
(d) Fibrous connective tissue
Ans. (d)
20. In blood, CO2 is transported majorly as:
(a) Sodium carbonate
(b) Carboxyhaemoglobin
(c) Bicarbonate
(d) CO2 as such
Ans. (c)
21. Animals undergoes inactive stage during winter, is known as
(a) Aestivation
(b) Hibernation
(c) Adaptation
(d) Acclimatization
Ans. (b)
22. Kupffer cells are present in:
(a) Liver
(b) Small intestine
(c) Pancreas
(d) Thyroid gland
Ans. (a)
23. The embryo at 16 celled stages is known as:
(a) Morula
(b) Gastrula
(c) Blastula
(d) Blastomere
Ans. (a)
24. Contractile vacuole in protozoan Amoeba is meant for:
(a) Respiration
(b) Excretion
(c) Locomotion
(d) Osmoregulation
Ans. (d)
25. In which of the following, putrefying bacteria is present?
(a) Intestine
(b) Colon
(c) Stomach
(d) Liver
Ans. (a)
26. Gill cover is absent in
(a) Shark
(c) Salmon
(b) Labeo
(d) All of these
Ans. (a)
27. The cyst wall of Euglena is made up of
(a) Lipids
(b) Histones
(c) Carbohydrates
(d) Lipoproteins
Ans. (c)
28. The class of coelenterate which exhibits polymorphism?
(a) Hydrozoa
(b) Scyphozoa
(c) Anthozoa
(d) All of these
Ans. (a)
29. Which pairing is not correct?
(a) Stegomyia — Yellow fever
(b) Pediculus —Trench fever
(c) Culex — Malaria
(d) Xenopsylla —Bubonic plague
Ans. (c)
30. ADP contains:
(a) One high energy bond
(b) Two high energy bond
(c) Three high energy bond
(d) Four high energy bond
Ans. (a)
31. Retroviruses have:
(a) Only RNA as genetic material
(b) Only DNA as genetic material
(c) Both DNA and RNA
(d) Genes on nucleoprotein complexes as genetic material
Ans. (a)
32. Which of the following is colourless Hydra?
(a) Hydra fusca
(b) Hydra viridis
(c) Hydra oligactis
(d) Hydra vulgaris
Ans. (d)
33. The process of gastrulation in frog is more complicated than in Amphioxus because of the presence, in frog, of:
(a) Passive micromere
(b) Passive macromere
(c) Passive mesomere
(d) Passive epimere
Ans. (b)
34. The outermost sheath of connective tissue that surrounds a skeletal muscle is .
(a) Epimer
(b) Epimysium
(c) Epimerite
(d) Epimere
Ans. (d)
35. Mammalian kidney is:
(a) Pronephros
(b) Epinephros
(c) Mesonephros
(d) Metanephros
Ans. (d)
36. In man sperms move after ejaculation at a rate of nearly:
(a) 2 to 4 mm/minute
(b) 2 to 4 feet/minute
(c) 2 to 4 inches/minute
(d) 2 to 4 cm/minute
Ans. (a)
37. The blood cells are formed in bone marrow. The process is known as:
(a) Haemolysis
(b) Erythroblastosis
(c) Haemopoiesis
(d) Thrombopoiesis
Ans. (c)
38. Transfer of genes from one bacterium to another through viruses, is called:
(a) Transduction
(b) Transformation
(c) Transcription
(d) Transition
Ans. (a)
39. Power of regeneration in sponges is due to
(a) Theocytes
(b) Amoebocytes
(c) Archaeocytes
(d) Scleroblast
Ans. (b)
40. Blood of Pheretima is:
(a) Blue with Haemocyanin in corpuscles
(b) Blue with hemoglobin in corpuscles
(c) Red with hemoglobin in corpuscles
(d) Red with hemoglobin in plasma
Ans. (d)
41. Function of rectal papillae of cockroach is:
(a) Absorption of amino acids
(b) Absorption of fats
(c) Absorption of glucose
(d) Absorption of water
Ans. (d)
42. Blood of Balanoglossus is:
(a) Red
(b) Blue
(c) Green
(d) Colourless
Ans. (d)
43. In fishes the lateral line receptors are neuromast organs. These are:
(a) Olfactoreceptors
(b) Gustoreceptors
(c) Rheoreceptors
(d) Chemoreceptors
Ans. (c)
44. The flight muscles of birds are attached to:
(a) Coracoids
(b) Scapula
(c) Keel of sternum
(d) Clavicle
Ans. (c)
45. Stenson’s duct opens at:
(a) Upper first premolar
(b) Upper 2nd premolar
(c) Upper first molar
(d) Upper second molar
Ans. (d)
46. Enterokinase takes part in conversion of:
(a) Pepsinogen to pepsin
(b) Trypsinogen to trypsin,
(c) Protein into polypeptides
(d) Caseinogen into casein
Ans. (b)
47. Depression of nervous system including the respiratory centre is called:
(a) Neuritis
(b) Sciatica
(c) Neuralgia
(d) Narcosis
Ans. (d)
48. Which has the thickest walls?
(a) Right atrium
(b) Left atrium
(c) Right ventricle
(d) Left ventricle
Ans. (d)
49. Digital formula of arms in man is:
(a) 0, 2, 3, 3, 3
(b) 0, 3, 2, 3, 3
(c) 2, 2, 3, 3, 3
(d) 2, 3, 3, 3, 3
Ans. (d)
50. The number of ribs in our body are:
(a) 10
(b) 12
(c) 24
(d) 36
Ans. (c)
..........................................------------------------------------....................................................................
Practice Set Medical Entrance Test CBSE Biology Zoology
PMT Exam Pattern PMT Free Mock Test Zoology
PMT Exam Pattern PMT Free Mock Test Zoology
1. Most of diverse molecules of cell are:
(a) Lipids
(b) Carbohydrates
(c) Proteins
(d) Organic compounds
Ans. (c)
2. Incubation period of Plasmodium vivax is:
(a) 14 days
(b) 30 days
(c) 40 days
(d) 32 days
Ans. (a)
3. The canal system is characteristic feature of:
(a) Helminthes
(b) Coelenterates
(c) Sponges
(d) Echinoderms
Ans. (c)
4. In cockroach, excretion occurs through:
(a) Nephral glands
(b) Nephridia
(c) Malpighian tubules
(d) Parotid gland
Ans. (c)
5. Haversian canals are found in:
(a) Cartilage
(b) Bone matrix
(c) Calcified cartilage
(d) None of the above
Ans. (b)
6. Maximum absorption of which of the following takes place in ileum?
(a) Urea
(b) Glucose
(c) Protein
(b) Vitamins
Ans. (b)
7. Maximum death among children is due to:
(a) TB
(b) AIDS
(c) Diphtheria
(d) Fever
Ans. (c)
8. Antibodies are:
(a) Lipids
(b) Carbohydrates
(c) Immunoglobulin
(d) Antiviral particles
Ans. (c)
9. Which of the following is a viral disease?
(a) T B
(b) Diphtheria
(c) Small pox
(d) All of these
Ans. (c)
10. Which of the following is not a stage of protein synthesis?
(a) Initiation of chain
(b) Elongation of chain
(c) Termination of chain
(d) Transcription
Ans. (d)
11. In 28 days human ovarian cycle, the ovulation takes place typically on:
(a) day 1st of cycle
(b) Day 6th of cycle
(c) Day 10th of cycle
(d) Day 14th of cycle
Ans. (d)
12. Trypsinogen is converted to active trypsin by:
(a) Enterokinase
(b) Secretins
(c) Enterocrinin
(d) Ptyalin
Ans. (a)
13. Filaria is transmitted through:
(a) Anopheles
(b) Culex
(c) Sand fly
(d) Housefly
Ans. (b)
14. Bone marrow is absent in:
(a) Reptiles
(b) Amphibians
(c) Ayes
(d) Mammals
Ans. (c)
15. Hydra recognizes its prey by:
(a) Nematocyst
(b) Chemostimulus of prey
(c) Mechanical stimulus
(d) Special sense
Ans. (a)
16. Fluid mosaic model of cell membrane was given by:
(a) Singer and Tatum
(b) Watson
(c) Robertson
(d) Singer and Nicolson
Ans. (d)
17. Which of the following is absent in nucleoside?
(a) Sugar
(b) Nitrogenous base
(c) Phosphate
(d) All of the above
Ans. (c)
18. Which of the following is a connet1ng link V between glycolysis and Krebs’ cycle?
(a) Citric acid
(b) Pyruvic acid
(c) Acetyl Co-A
(d) Glucose
Ans. (c)
19. Lock and key model of enzyme action was proposed by:
(a) Kuhne
(b) Koshland
(c) Buchner
(d) Fischer
Ans. (d)
20. Which of the following sugar is called as milk sugar?
(a) Glucose
(b) Fructose
(c) Maltose
(d) Lactose
Ans. (d)
21. Exchange of nutrients takes place through:
(a) Chemical cycle
(b) Geological cycle
(c) Biogeochemical cycle
(d) Water cycle
Ans. (d)
22. Mammary glands without teats are found
(a) Metatheria
(b) Prototheria
(c) Eutheria
(d) All of these
Ans. (b)
23. Which of the following process needs bacteriophage?
(a) Transduction
(b) Translation
(c) Transformation
(d) Conjugation
Ans. (a)
24. In which of the following period trilobites were evolved?
(a) Salvian
(b) Precambrian
(c) Cambrian
(d) Devonian
Ans. (b)
25. Cast nets are used to catch:
(a) Marine fishes
(b) Estuary fishes
(c) Freshwater fishes
(d) all of these
Ans. (c)
26. Purkinje fibres are present in:
(a) Brain
(b) Heart
(c) Blood
(d) Lungs
Ans. (b)
27. Dissociation curve of hemoglobin is:
(a) Sigmoid
(b) Parabolic
(c) Straight line
(d) Hyperbolic
Ans. (a)
28. Which is correct about veins?
(a) Carry blood towards heart
(b) Always carry oxygenated blood
(c) Always carry. Deoxygenated blood
(d) None of the above
Ans. (a)
29. The function of Henle’s loop is:
(a) Passage of urine
(b) Formation of urine
(c) Conservation of water
(d) Filtration of water
Ans. (c)
30. Which of the following is non-myelinated nerve fiber?
(a) Autonomic nerves
(b) Optic nerve
(c) Cranial nerve
(d) Spinal nerve I
Ans. (a)
31. Frog’s tadpoles are:
(a) Ureotelic
(b) Ureotelic
(c) Ammonotelic
(d) None of these
Ans. (c)
32. Water reabsorption in kidney is controlled by:
(a) GH
(b) ADH
(c) Oxytocin
(d) Aldosteron
Ans. (b)
33. Parathormone is responsible for:
(a) Controlling calcium level in blood
(b) Decreasing calcium level in blood
(c) Filtration in nephron
(d) Increasing absorption of water
Ans. (a)
34. Hinge joint is present between:
(a) Humerus and ulna
(b) Femur and pectoral girdle
(C) Humerus and pelvic girdle
(d) all of the above
Ans. (c)
35. Intercellular communication in human takes place by:
(a) Cytoplasm
(b) Nerves
(c) Hormones
(d) Nerves and hormones
Ans. (d)
36. Pancreas secretes pancreatic juice on stimulation by:
(a) Rennin
(b) Gastrin
(c) Secretin
(d) DDK
Ans. (c)
37. Which of the following is not a granulocyte?
(a) Basophils
(b) Monocytes
(c) Acidophilus
(d) Neutrophils
Ans. (b)
38. Ligament is a:
(a) Modified fibre
(b) Non-elastic white fibre
(c) Non-elastic yellow fibre
(d) Modified yellow elastic fibrous tissue
Ans. (d)
39. Knock knee disease is due to:
(a) Hormonal imbalance
(b) Excess of fluoride in water body
(c) Deficiency of tyrosine amino acid.
(d) Lack of ascorbic acid
Ans. (b)
40. Which is exclusive character of class Mammalia?
(a) Muscular diaphragm
(b) Internal fertilization
(c) 4 chambered heart
(d) Homiothermy
Ans. (a)
41 Petromyzon belongs to:
(a) Cyclostomata
(b) Amphibian
(c) Morula
(d) Osteochthyes
Ans. (a)
42. Starfish belongs to class:
(a) Pisces
(b) Asteroidea
(c) Cephalopoda
(d) Ophiuroidea
Ans. (b)
43. Nerve impulse initiates with the movements of:
(a) K+
(c) Ca+
(b) Na+
(d) Mg+
Ans. (b)
44. When an animal has both sexes (male and female), it is called
(a) Intersex
(b) Super male
(c) Gynandromorphs
(d) Super female
Ans. (c)
45 The contraction of gall bladder is due to:
(a) Gastrin
(b) Cholecystokinin
(c) Secretin
(d) Kinas
Ans. (b)
46. Which of the following has upright pyramid?
(a) Biomass
(b) Number
(c) Energy
(d) None of these
Ans. (c)
47. Which of the following has Discoidal placenta?
(a) Rabbit
(b) Deer
(c) Sheep
(d) Pig
Ans. (a)
48. DNA replication takes place in:
(a) G1-phase
(b) S-phase
(c) G-phase
(d) Prophase
Ans. (b)
49. Relaxin is released from:
(a) Pituitary
(b) Ovary
(c) Testes
(d) Adrenals
Ans. (b)
50. Which of the following is a transparent tissue?
(a) Tendon
(b) Hyaline cartilage
(c) Fibrous cartilage
(d) All of these
Ans. (b)
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