Question

Three friends made the following statements.​

Sunil : Indian giant squirrel is found only in India. It is an X species.​Shruti : Eicchornia now seen growing widely in ponds and lakes was naturally not found in India. It is an Y species.​
Priyanka : Indian rhinoceros will no longer be seen on earth if not conserved. It is an Z species.​

Identify the terms X, Y and Z and select the correct option.

• A. X – Endemic; Y – Extinct; Z - Endangered​
• B. X – Epidemic; Y – Exotic; Z - Endangered​
• C. X – Epidemic; Y – Exotic; Z - Extinct​
• D. X – Endemic; Y – Exotic; Z - Endangered​

Answer 1

The correct option is D X – Endemic; Y – Exotic; Z - Endangered​

• Endemic species are plants and animals found exclusively in a particular area.​ As Indian giant squirrel is found only in India, so X here is endemic species.
• Non-native species found in areas outside natural habitat are called exotic species. As Eicchornia is not naturally found in India, so Y here is exotic species.
• Species of plants and animals that are on the verge of extinction are called endangered species, Indian rhinoceros will no longer be seen on earth if not conserved, so Z here is endangered species.