Selection

Question 1

Define natural selection:

Answer 1

Natural selection is the process by which an environmental factor acts on a population, resulting in some organisms having a greater chance of survival than others.

Question 2

Define selective pressures:

Answer 2

Selective pressures are environmental factors that influence the survival and reproductive success of organisms.

Question 3

Define artificial selection:

Answer 3

Artificial selection is where breeders “select” favorable characteristics and breed animals or plants with those characteristics.

Question 4

How long does it take for artificial selection to occur?

Answer 4

It happens across generations

Question 5

Define Sexual Selection

Answer 5

Sexual selection occurs when members of one biological sex choose mates of the opposite sex to mate with), and compete with members of the same sex for access to members of the opposite sex.

Question 6

Why does sexual selection work?

Answer 6

Sexy Sons:
Females choose sexy partners so their sons will be sexy and have a higher chance of mating.

Good Genes:
Females determine if males have good genes physical traits.