Evolution Unit Review

An adaptation is something that:

• allows an organism to reproduce and pass on their traits

• allows organisms to survive and undergo mutations in their DNA

• increases the mortality rate of the population

• an organism no longer needs to survive

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What would most likely be the biggest issue with a population of cheetahs having a low genetic diversity?

• They become less likely to survive a disease

• Future cheetahs will be stronger and better adapted

• The chances of mutation are smaller

• i don't feel like reading

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Organisms with a high fitness could be described as:

• the most likely to survive and reproduce

• the strongest organism

• the fastest organism

• the biggest organism

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Which two organisms are the most closely related?

• bravoana and simonyi

• stehlini and simonyi

• galloti galloti and galloti eisentrauti

• bravoana and atlantica

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Which two organisms are the least closely related?

• bravoana and simonyi

• stehlini and simonyi

• galloti galloti and galloti eisentrauti

• bravoana and atlantica

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The whale's femur and pelvis are vestigial structures. How do they provide evidence for evolution?

• They show that the organism has changed from using the structures to no longer using the structure

• They are still used by the organism

• They show that whales can change their traits during their lifetime

• They show that Mr. Batts is the coolest teacher

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The similar bone structures show what about these organisms?

• They share a common ancestor

• They adapted to similar environments

• They are all mammals

• They have the same DNA

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What does the similarity of these structures tell us about these organisms?

• They grow at different rates

• they have a common ancestor

• They evolved slowly

• They do the same thing

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When there is a difference in population based on genes, it is said to be a _______________.

• Mutation

• Speciation

• Extinction

• Genetic Variation

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Natural selection is the process that passes down ____________________ traits that increase the chance of an organisms survival.

• Same

• Old

• Useless

• Favorable

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