Question

What is common to Lantana, Eichhornia and Africa catfish?
A. All are endangered species of India.
B. All are keystone species.
C. All are mammals found in India.
D. All are species are neither threatened nor indigenous species of India.

Answer 1

Correct Answer - D
Lantana, Eichhornia and Africa catfish are exotic species. Non-native or exotic species are often introduced inadvertently for their economic and other uses. They often become invasive and drive away the focal species. These species are considered to be second major cause of extinction of spcies. Exotic species have proved harmful to both aquatic and terrestrial ecosystems.