Question Details

Match List - I with List - II and choose the correct answer from the options given below.

List - I List - II
(a) Adaptive radiation (i) Selection of
resistant varieties due
to excessive use of
herbicides and pesticides
(b) Convergent evolution (ii) Bones of forelimbs in Man
and Whale
(c) Divergent evolution (iii) Wings of Butterfly and Bird
(d) Evoulution by
anthropogenic action
(iv) Darwin Finches

Options

A

a - iv, b - iii, c - ii, d - i

B

a - iii, b - ii, c - i, d - iv

C

a - ii, b - i, c - iv, d - iii

D

a - i, b - iv, c - iii, d - ii

Show Answer

Correct Answer :

Option A

a - iv, b - iii, c - ii, d - i

a - iv, b - iii, c - ii, d - i

Solution :

The correct option is a - iv, b - iii, c - ii, d - i.

Let us analyze and match each concept from List - I with its corresponding example in List - II:

(a) Adaptive radiation matches with (iv) Darwin Finches:
Adaptive radiation is an evolutionary process in which an ancestral species diversifies into a variety of forms that adapt to different ecological niches. The classic example is Darwin's finches of the Galápagos Islands, which evolved different beak shapes and sizes from a common seed-eating ancestor to exploit diverse food sources.

(b) Convergent evolution matches with (iii) Wings of Butterfly and Bird:
Convergent evolution occurs when unrelated organisms independently evolve similar physical structures (analogous organs) to perform similar functions because they adapt to similar environments. The wings of a butterfly (insect) and a bird (vertebrate) serve the function of flight but have completely different anatomical origins, indicating convergent evolution.

(c) Divergent evolution matches with (ii) Bones of forelimbs in Man and Whale:
Divergent evolution is the process where species sharing a common ancestor accumulate differences, leading to the formation of new species. It is evidenced by homologous structures, which share a common anatomical plan but serve different functions. The forelimbs of a human and a whale have similar skeletal structures (humerus, radius, ulna, carpals, metacarpals, phalanges) but are adapted for grasping and swimming, respectively.

(d) Evolution by anthropogenic action matches with (i) Selection of resistant varieties due to excessive use of herbicides and pesticides:
Anthropogenic action refers to human activities. The rapid selection and evolution of pesticide-resistant insects and herbicide-resistant weeds due to the excessive application of these chemicals by humans is a direct example of evolution driven by human action.

Combining these matches, we get:
(a) - (iv)
(b) - (iii)
(c) - (ii)
(d) - (i)

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