Identify the incorrect statement.

Easy

A

Host specific parasites and their hosts are co-evolved.
B

In competition, r (intrinsic rate of natural increase) of both competing species are decreased.
C

In case of brood parasitism, crow is unable to identify between its own eggs and cuckoos eggs.
D

Introduction of sheep on Galapagos Islands has resulted in extinction of Abingdon tortoise.

Solution

'Gause's Competitive Exclusion Principle'
If the resources are limited, two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior species have to be eliminated.
Example: Within a decade after introduction of goats in Galapagos Islands, Abingdon tortoise became extinct due to the greater browsing efficiency of the goats.

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