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Study the following.
A) Steller’s sea cow and passenger pigeon are extinct due to habitat loss.
B) Geological fragmentation may lead to speciation, but fragmentation caused by man mostly leads to extinction of species.
C) Alien species turn invasive and establish themselves at the cost of indigenous species
D) Co-extinction is a non- obligate relationship between a parasite and host.
Identify the correct statements are:

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A , C , D

B ,C

A, B ,C

A, D

answer is B.

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Detailed Solution

Dodo, passenger pigeon and Steller's sea cow have become extinct in the last `500` year due to over-exploitation by humans. Co-extinction is a non- obligate relationship between two organisms.

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