Evolution, natural selection and aggression

Question 1

Evolution by natural selection

Answer 1

Variation arises from parents genes due to mutations

Question 2

The process of natural selection

Answer 2

Environment chooses individuals who can survive
Individuals who possess characteristics that help them survive and reproduce successfully, will pass on genes to next generation

Question 3

Sexual selection

Answer 3

Some characteristics are adaptive because they provide an advantage over competitors for reproductive rights
Aggressive characteristics allowed animal to reproduce passed on to offspring and genes gave rise to characteristics that remain