Q.

According to Paul Ehrlich hypothesis, ‘a popped rivet’ is an analogy for

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a

extant species.

b

endangered species.

c

extinct species.

d

alien species.

answer is B.

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Detailed Solution

An extinct species is represented as popped rivet in Rivet popper hypothesis.

Rivet - Species

Aeroplane - Ecosystem

Rivets in wings - Keystone species

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According to Paul Ehrlich hypothesis, ‘a popped rivet’ is an analogy for