Amplify Natural Selection Unit Review

The newt population became more poisonous over

• selective breeding

• natural selection

• the newt's diet

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How would you describe a horse population composed of horses of different colors?

• All of the horses have the same traits because they are in the same population

• The population of horses has different traits for color. Some horses are brown. Some are gray, some are black, and some are white

• None of the horses in the population have similar traits because they are all individuals.

• These horses must not be in a population because they have different traits.

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According to Amplify 1.3, a(n) _____________________ can be used to chart out the frequency of a gene variable in a population

• generation

• distribution

• evolution

• histogram

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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

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Any difference between cells, individual organisms, or groups of organisms of any species is called

• natural selection

• variation

• generation

• distribution

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How do genes determine an individual’s traits?

• Genes directly cause traits

• Genes are random and don’t lead to traits

• Genes give organisms the ability to change their traits.

• Genes are instructions for making protein molecules and protein molecules determine traits.

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Where do the genes that determine an individual's traits come from?

• An individual can be born with any genes, since genes are random.

• Individuals grow genes specific to their environment.

• Parents pass their genes down to their offspring

• Parents choose which genes their offspring have when each individual is born

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Why were the newts with the poison gene able to live longer than those newts without the poison gene?

• the newts with the poison gene were able to live longer than the other newts

• the newts with the poison live longer because they are able to reproduce more than the other newts

• both claims are correct

• neither claim is correct

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

• generation

• distribution

• non-adaptive trait

• adaptive trait

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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

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