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6 questions · 2014 · answers as per the UPSC key

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All years of Biology · Full UPSC 2014 paper
UPSC 2014 · Q13 · Science & Technology › Biology · Save

Which of the following phenomena might have influenced the evolution of organisms?

  1. Continental drift
  2. Glacial cycles

Select the correct answer using the code given below.

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
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Answer: (c) Both 1 and 2
UPSC 2014 · Q17 · Science & Technology › Biology · Save

Consider the following :

  1. Bats
  2. Bears
  3. Rodents The phenomenon of hibernation can be observed in which of the above kinds of animals?
(a) 1 and 2 only
(b) 2 only
(c) 1, 2 and 3
(d) Hibernation cannot be observed in any of the above
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Answer: (c) 1, 2 and 3
UPSC 2014 · Q22 · Science & Technology › Biology · Save

Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of

(a) algae and bacteria
(b) algae and fungi
(c) bacteria and fungi
(d) fungi and mosses
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Answer: (b) algae and fungi
UPSC 2014 · Q65 · Science & Technology › Biology · Save

Which one of the following is the process involved in photosynthesis?

(a) Potential energy is released to form free energy
(b) Free energy is converted into potential energy and stored
(c) Food is oxidized to release carbon dioxide and water
(d) Oxygen is taken, and carbon dioxide and water vapour are given out
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Answer: (b) Free energy is converted into potential energy and stored
UPSC 2014 · Q73 · Science & Technology › Biology · Save

Consider the following statements :

  1. Maize can be used for the production of starch.
  2. Oil extracted from maize can be a feedstock for biodiesel.
  3. Alcoholic beverages can be produced by using maize.

Which of the statements given above is/are correct?

(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
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Answer: (d) 1, 2 and 3
UPSC 2014 · Q74 · Science & Technology › Biology · Save

Among the following organisms, which one does not belong to the class of other three?

(a) Crab
(b) Mite
(c) Scorpion
(d) Spider
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Answer: (a) Crab