Question

Reasons that the population size of an exotic species often grows rapidly when the species is introduced in a new environment include which of the following?
(i) The exotic species is resistant to pesticides.
(ii) There is a large, underutilised food source in the new environment.
(iii) The exotic species has few natural predators in the new environment.

• A. (i) only
• B. (ii) only
• C. (i) and (iii) only
• D. (ii) and (iii) only

Answer 1

The correct option is D (ii) and (iii) only

Exotic species are those species which are introduced from distant or foreign region. These species grows very fast as in the new area there are no or less competition for food and space, and also less predators and hence they show rapid reproduction and fast dispersal ability.

So, the correct answer is option D.