Question

Invasion of an Alien species leads to extinction of native species. Justify this with two examples.

Answer 1

Well we can take the example of the death of the dinosaurs and the death of a person when affected with AIDS.

Answer 2

Hi

Here is your answer

When alien species are introduced into a habitat, they turn invasive and establish themselves at the cost of indigenous species(organisms which occur naturally in a particular region).

Example:I)Mile perch introducedinto lake Victoria in East Africa led to the extinction of 200 species of child fish in the lake

II) illegal introduction of exotic African catfish clarias Gariepinus for aquaculture purposes is posing a threat to the indigenous cat fishes