Question

Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.
(A) Wings of butterfly and birds look alike and are the results of i evolution.
(B) Miller showed that CH4,H2,NH3 and i when exposed to electric discharge in a flask resulted in formation of ii
(C) Vermiform appendix is a i organ and an ii evidence of evolution.
(D) According to Darwin, evolution took place due to i and ii or the fittest.

Answer 1

Answer:

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Answer 2

Answer:

A

Explanation:

i. Wings of butterfly and birds look alike and are the

results of convergent (A) evolution.

ii. Miller showed that CH4

, H2

, NH3

and water vapour

(A) when exposed to electric discharge in a flask

resulted in the formation of amino acids (B).

iii. Vermiform appendix is a vestigial (A) organ and

an anatomical or morphological (B) evidence of

evolution.

iv. According to Darwin, evolution took place due to

small variation (A) and survival (B) of the fittest.