Natural Selection

The number of individuals with each trait in a population can change over time.

• True

• False

Tags

NGSS.MS-LS4-4

The traits that exist in a population determines which traits can become more common over many generations

• True

• False

Tags

NGSS.MS-LS4-4

Over many generations, individuals with non-adaptive traits become more common in a population, while individuals with adaptive traits become less common.

• True

• False

Tags

NGSS.MS-LS4-4

What can you tell about this population of Thornpalms from the histogram?

• High water storage is an adaptive trait

• It has a non-adaptive trait

• It has medium to high variation

• It has low variation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

What can you tell about this population of newts from the histogram

• Most of the newts have high poison levels

• Most of the newts have medium poison levels

• Low poison level is the adaptive trait

• You cannot tell anything about the poison levels

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-1

Why do populations change over time?

• different traits are passed on depending on which traits are favored by the environment

• they mutate

• they lose abilities that are no longer useful

Tags

NGSS.MS-LS4-4

The poison of the newt was a(n) __________________________ against the snakes in the environment.

• generation

• distribution

• non-adaptive trait

• adaptive trait

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

Which is NOT an example of mutations allowing the population to survive the environmental change?

• a mutation for fur to protect against a change in the temperature

• a mutation in poison to protect against an increase of snakes in the environment

• an organism continuing to express the same genes regardless of changes in the environment

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

Which is an example of a non-adaptive trait of the newt population?

• eye color of the newt

• color of the newt's body for camouflage

• poison of the newt to protect against predatory snakes

• tough skin of the newt to protect against rocks

Tags

NGSS.MS-LS4-4

Which location has guppies with medium spot size as the adaptive trait?

• Population in Brazil

• Population in Venezuela

Tags

NGSS.MS-LS4-4