The exotic species $Eichhornia \text{ } crassipes$:
- AWas introduced by Europeans in India
- BWas introduced in India accidentally
- CWas introduced in Lake Victoria of South Africa
- DIs a straggling shrub of tropical America
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Extinction abetted by human activities is called
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View SolutionWhen a host fish species becomes extinct,its unique assemblage of parasites also meets the same fate. This is an example of:
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View SolutionHow is the presently occurring species extinction different from the earlier mass extinctions?
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View SolutionMatch the following columns:
List-$I$ List-$II$ $(a)$ Dodo $(1)$ Africa $(b)$ Quagga $(2)$ Russia $(c)$ Thylacine $(3)$ Mauritius $(d)$ Steller's sea cow $(4)$ Australia
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