Introduction of alien species has led to environmental damage and decline of indigenous species. Give any one example of how it has affected the indigenous species?

Define sibling species. Give one example.

Introduction of alien species into new area poses a threat to extinction of indigenous species due to

Give any 'two' examples of endongered species.

What are ‘pioneer species’? Give two examples of them.

What is an endangered species ? Give an example of an endangered plant and animal species each ?

Assertion: Introduction of alien species is responsible for extinction of indigenous species. Reason: Alien species have no natural predator. So they causes uncontrolled predation and donot show prudent nature.