Zoology Exam Question Paper

Will you please provide the Question Paper of the Zoology Exam ?

[Arun Vats]

Here is the list of few questions of Zoology Exam paper which you are looking for .

1. The approximate number of species of reptiles describe so far is
(a) 26,500
(b) 18,200
(c) 6,300
(d) 4,100
Ans. (c)
2. The ‘Biological clock’ in higher vertebrates is regulated by
(a) The pituitary gland
(b) Cerebral cortex
(c) Supra-chiasmatic nucleus in hypothalamus
(d) Thymus
Ans. (c)
3. Which one of the following statements about circadian rhythm is correct?
(a) Circadian rhythm, dependent on endogenous clock, is restricted to birds and mammals
(b) An animal’s circadian rhythm has a period of exact 24 hours
(c) The period of circadian rhythm is not exactly 24 hours
(d) Circadian rhythm is necessary because earth is tilted on its axis
Ans. (a)
4. Consider the following statements
(1) The energy flow in an ecosystem results in entropy.
(2) In prairie ecosystems, 90 per cent of the secondary productivity occurs in the soil.
(3) The detritus chain is of greater importance in energy flow in many ecosystem than, are her bivorous/canivorous/omnivorous grazing chains.
Which of these statements are correct?
(a) 1 and 2
(b) 1, 2 and 3
(c) 2 and 3
(d) l and 3
Ans. (c)
5. Changes in the body form of some planktonic animals with seasonal change in temperature are grouped under
(a) anamorphous
(b) cyclomorphosis
(c) metamorphosis
(d) heteromorphosis
Ans. (b)
6. The lowest temperature at which organisms can live indefinitely is known as
(a) minimum survival temperature
(b) minimum effective temperature
(c) minimum critical temperature
(d) incipient lethal low temperature
Ans. (c)
7. Which one of the following ecological pyramids can never be inverted?
(a) Pyramid of number
(b) Pyramid of size
(c) Pyramid of biomass
(d) Pyramid of energy
Ans. (d)
8. Which one of the following statements is not correct pertaining to changes in the abiotic environment?
(a) Annual changes in temperature in aquatic environments are more marked in temperate fresh water climates then in other climates
(b) Temperature is the major factor in the creation of ocean currents and air currents
(c) At global level, human activities contribute nine times more particulate matter or aerosols into the air than do natural processes
(d) In the troposphere, photo oxidation of hydrocarbons in the presence of nitrogen oxides produces ozone
Ans. (d)
9. Which one of the following is a correct set of endangered species of India?
(a) Great Indian bustard, Musk deer, Asiatic lion, Royal Bengal tiger
(b) Kashmir stag, Cheetal, Blue bull, Great Indian bustard
(c) Snow leopard, Swamp deer, Free ranging rhesus monkey, Hanuman Langur
(d) Lion-tailed macaque, Blue bull, Hanuman Langur, Cheetal
Ans. (a)
10. Generally the largest animals are found in aquatic habitat because
(a) there is more food available
(b) gravity effects are minimized by buoyancy
(c) temperature fluctuation is less drastic
(d) it is easier to maintain homeostasis
Ans. No option is correct.
11. With regard to environmental pollution, consider the following statements:
(a) Organic phosphates are degradable chemical insecticides
(b) Chlorinated hydrocarbons depress photosynthesis of marine phytoplankton but have no adverse effect on aquatic animals
(c) The atmospheric pollutant ozone causes respiratory distress in man but has no adverse effects on plants
(d) Sulphur dioxide (SO2) in air adsorbs on particulate pollutants
Which of these statements are correct?
(a) 1, 2 and 3
(b) 2, 3 and 4
(c) l and 4
(d) 1, 2, 3 and 4
Ans. (c)
12. Which group of organisms serves as the best indicators of pollution in a stream?
(a) Plankton
(b) Neuston
(c) Benthos
(d) Nekton
Ans. (a)
13. In which ecosystem is the detritus pathway most important in energy movement through trophic levels?
(a) Rain forest
(b) Lakes
(c) Grassland
(d) Oceans
Ans. (d)
14. Removal of the keystone predator from a community will result in
(a) dominance of an alternate predator
(b) general decline in species diversity
(c) increases in prey population densities
(d) decrease in primary productivity
Ans. (b)
15. One of the major adaptive features of the desert animals is
(a) production of metabolic water
(b) conservation of metabolic water
(c) reduced metabolic activity
(d) reduced excretion
Ans. (b)