8.4

Question 0

Altered selection pressures leads to differing

Answer 0

Survival and reproduction within the populations

Question 1

Human activity is having a major effect on most of the ecosystems found on Earth. Populations living within these ecosystems are exposed to

Answer 1

Altered selection pressures as a result of human activity

Question 2

Differing survival and reproduction within the populations in turn affects the

Answer 2

Frequency of alleles within the gene pools of these populations

Question 3

Humans are therefore affecting the

Answer 3

Evolution of populations and species