Evolution Part 3: Natural Selection

Question 1

How are mutations selected

Answer 1

Ideal mutations will be selected non randomly by natural pressures

Question 2

Types of natural pressures

Answer 2

-Food source access

-Predator/prey relationships

-Reproduction ability

-New diseases arriving

-Environment changes

Question 3

What organisms survive

Answer 3

Only the fittest

Question 4

How the fittest reproduce

Answer 4

Make offspring with same traits

Question 5

Requirements to see changes in population

Answer 5

-Random mutations must occur

-Mutations must be good for surviving

-Mutations must be able to be inherited to offspring

-Must happen in egg/sperm to be passed on

Question 6

Types of natural selection 1.

Answer 6

Stabilizing selection:

Average of 2 extreme traits are selected

Question 7

Types of natural selection 2.

Answer 7

Disruptive/diversify selection:

2 extremes of the traits are selected

Question 8

Types of natural selection 3.

Answer 8

Directional selection:

1 extreme trait is selected