Natural Selection Amplify

Scientists measured the spot size of all the guppies (small fish) that lived in a river 40 years ago. They measured the spot size of the guppy population again last year. When was there more variation in the spot size of guppies in the river?

• These bar graphs do not show the amount of variation in the population.

• There was the same amount of variation in spot size 40 years ago and last year.

• There was more variation 40 years ago.

• There was more variation last year.

Tags

NGSS.MS-LS3-1

How would you describe the population shown in the histogram?

• The ostrilopes have thick fur

• The ostrilopes don't have a lot of fur

• the population has a lot of variation

• the population has no variation

Tags

NGSS.MS-LS4-4

Which of the following is an adaptive trait?

• yellow ostrilopes in a green environment with predators present

• yellow ostrilopes in a yellow environment with predators present

• multiple colors of ostrilopes in a yellow environment with predators present

• all of the ostrilopes dying off

Tags

NGSS.MS-LS4-4

What would be something that would cause a population to be adaptive?

• a change in the climate/ weather

• predators

• low food supply

• high food supply

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Why did the newts become poisonous?

• they wanted to

• they were attacked by another poisonous animal

• snakes were introduced to their environment

• they needed to protect themselves from predators

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

What is an adaptive trait?

• a trait that makes it less likely to survive in an environment

• a trait that makes it more likely to survive in an environment

• a trait that will lead to extinction

• a trait that will help a population reproduce

Tags

NGSS.MS-LS4-4

What is an non-adaptive trait?

• a trait that makes it more likely to survive in an environment

• a trait that makes it less likely to survive in an environment

• a trait that could lead to extinction

• a trait that will help a population reproduce

Tags

NGSS.MS-LS3-1

If this population is adaptive, after 50 years how will this population change if there is a lot of rainfall?

• the thornpalms will shift to store more water

• the thornpalms will die out

• the thornpalms will stay about the same

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If this population is adaptive, after 50 years how will this population change if there is little to no rainfall?

• the thornpalms will stay about the same

• the thornpalms will shift to store less water

• the thornpalms will shift to store more water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the trait is an acquired phenotype.

Tags

NGSS.MS-LS4-4