Question

Introduction of exotic species is one of the major threats of biodiversity.

1. Cite any two examples of these exotic species in your locality. 

2. Recent illegal introduction of a fish for aquaculture poses a threat to indigenous cat fishes in our rivers. Name it. 

3. How co-extinctions affects biodiversity?

Answer 1

1. Eichornia - Lantana Camera 

2. African cat fish (clarius gariepinus) 

3. When a species becomes extinct, the species associated with it in an obligatory way also become extinct. This is called co-extinction.