Natural Selection

Question 1

What are the 3 main types of natural selection

Answer 1

Stabilising selection, directional selection, disruptive selection

Question 2

What is stabilising natural selection

Answer 2

When a gene makes an animal better then the rest in their climate, but would fail if there was to be a change in climate (the cheetah can’t run fast if there’s trees)

Question 3

What is directional natural selection

Answer 3

A trait that grants a small advantage or the rest and builds up over millions of years - the giraffe

Question 4

What is disruptive natural selection

Answer 4

When a species split off and adapt to their environment in different ways (the turtle)

Question 5

What type of natural selection is it when a trait makes an animal thrive in its environment but they cannot adapt as efficiently as others

Answer 5

Stabilising natural selection

Question 6

What type of natural selection is it when a trait gives a small advantage but over millions of years gives a massive advantage

Answer 6

Directional natural selection

Question 7

What type of natural selection is it when once species splits up and the animals go to different locations and adapt to their surroundings through traits

Answer 7

Disruptive natural selection