When are two animals classified as belonging to the same species? A) When they have the same feeding habits. B) When they are found in the same habitat. C) When they have many common physical features. D) When they can interbreed to produce fertile offspring.

The answer is letter "D"

Answer: D) When they can interbreed to produce fertile offspring.

Explanation:

A species can be define as the group of organisms that exhibit common physical and physiological characteristics. The members of such group are capable of inbreeding among themselves and producing viable fertile offsprings.

On the basis of the above description, this can be said that two animals can be classified as belonging to the same species when they can interbreed to produce fertile offspring.