The difference in structure, morphological and behavior of plant and animal is called?

A. adaptation
B. evolution
C. variation
D. succession

Correct Answer:

Option C – variation

Explanation

Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).

Variation may be shown in physical appearance, metabolism, fertility, mode of reproduction, behaviour, learning and mental ability, and other obvious or measurable characters.