Evolution of animal behaviour can occur only if
A) individuals within a population show variation in behaviour.
B) differences in behaviour are genetic in origin.
C) greater survival or reproductive success results from some behaviours in comparison to others.
D) reproduction is advantaged by one behaviour in comparison to another.
E) All of the answers are true.

Question

Quizplus · Accepted Answer

All the options (A, B, C, D) are essential conditions for the evolution of animal behavior through natural selection. Variation in behavior allows for selection, genetic basis ensures inheritance, and differential survival or reproductive success due to these behaviors drives evolution.

Evolution of Animal Behaviour Can Occur Only If