Adepiction of species as groups of individuals capable of fertile interbreeding but reproductively isolated from other such groups is:

The correct answer will be-Biological species concept.

Explanation:

The biological species concept is the concept used to define the organism which can interbreed to produce a viable progeny but cannot breed with other groups.

This concept helped in understanding the distinction of the organism as species proposed by Ernst Mayr. This definition of species became most widely used by the scientist.

Thus, Biological species concept is the correct answer.

the answer to your question is sperm

b - the respond is innate and varies over time.

good luck!