Unit 9 Review

Some organisms that share a common ancestor have features that have different functions, but similar structures. These are known as

• vestigial structures

• analogous structures

• homologous structures

• fossil structures

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Which of the following is a term for a group of similar organisms that can reproduce and produce fertile offspring?

• Individual

• Population

• Species

• Fossil

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The difference in the physical traits of an individual from those of other individuals in a group is called a(n)

• Change

• Adaptation

• Species

• Variation

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In natural selection, the selective agents is the

• Humans

• Mutations

• Breeders

• Environment

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A measure of how commonly a particular allele occurs in a population is known as the

• Gene Pool

• Allele Frequency

• Mutation Rate

• Phenotype

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Hominids include which of the following organisms

• Orangutans

• Chimpanzees

• Humans

• Gorillas

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Two-legged, upright walking. _____________________

• Prosimians

• Bipedal

• Hominid

• Primate

Evolution is considered to be one of the most important theories in science, because it

• was developed more than 100 years ago

• is not supported by the fossil record

• unites the fields of biology, geology, chemistry, and ecology

• was discovered by Charles Darwin, a famous scientist

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The DNA sequences of whales and ungulates, or hooved animals, are very similar. What type of evidence of evolution is this?

• Vestigial

• Molecular

• Embryological

• Fossil

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The theory of endosymbiosis suggests that chloroplasts and mitochondria were once free-living prokaryotes, that were engulfed by larger prokaryotic cells. Eventually, this relationship led to the development of eukaryotic cells with cellular organelles. These organelles included mitochondria, and in some cases, chloroplasts. The endosymbiosis theory is supported by both organelles

• Contain DNA

• are found in eukaryotes

• are capable of living independently

• make protein

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