STAAR Review Quizziz 7

The process through which species change over time is called:

• Evolution

• Photosynthesis

• Metamorphosis

• Respiration

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The theory of evolution through natural selection was proposed by:

• Charles Darwin

• Isaac Newton

• Albert Einstein

• Galileo Galilei

The term for species that have died out completely is:

• Endangered

• Extinct

• Threatened

• Vulnerable

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The main driving force of evolution is:

• Natural selection

• Genetic drift

• Mutation

• Gene flow

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The term for the process of species giving rise to new species is:

• Evolution

• Speciation

• Adaptation

• Mutation

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Which factor increases an organism's chances of surviving and reproducing?

• Adaptation

• Mutation

• Migration

• Extinction

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Which statement describes genetic drift?

• Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms.

• Genetic drift is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

• Genetic drift is the transfer of genetic variation from one population to another.

• Genetic drift is the change in the structure of a gene leading to a new trait.

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The process of gene flow is:

• the transfer of genetic material between populations

• the mutation of genes within a single organism

• the cloning of organisms

• the natural selection of the fittest individuals

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The term for the changing of genetic material within a population over time is:

• Evolution

• Mutation

• Genetic Drift

• Natural Selection

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Which mechanism helps eliminate harmful alleles from a population?

• Natural selection

• Genetic drift

• Mutation

• Gene flow

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