Evolution Vocab

What is the definition of 'Adaptation'?

• A trait with a current functional role in an organism

• A random mutation in an organism

• A temporary change in an organism

• A behavioral change in an organism

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What are analogous structures?

• Structures with a similar function and a common ancestor.

• Structures with a similar function but not a common ancestor.

• Structures with different functions and a common ancestor.

• Structures with different functions and no common ancestor.

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What are homologous structures?

• Structures in different species that show a common ancestor.

• Structures in the same species that are different.

• Structures that have no evolutionary significance.

• Structures that are identical in all species.

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What is a vestigial structure?

• A) A structure that serves a vital purpose

• B) A structure that no longer serves a purpose

• C) A structure that is newly evolved

• D) A structure that is harmful to the organism

What is the definition of Divergent Evolution?

• A) Similar species become more alike.

• B) Similar species become less alike.

• C) Different species become more alike.

• D) Different species become less alike.

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Explain the concept of Divergent Evolution using the diagram provided.

• Divergent evolution is the process by which two or more related species become more dissimilar over time, often due to different environments.

• Divergent evolution is the process by which unrelated species become more similar due to similar environments.

• Divergent evolution is the process by which species evolve into a single species over time.

• Divergent evolution is the process by which species do not change over time.

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What is convergent evolution?

• A) Organisms closely related evolve similar traits.

• B) Organisms not closely related evolve similar traits.

• C) Organisms evolve different traits in similar environments.

• D) Organisms evolve similar traits in different environments.

What type of evolution is characterized by being slow and constant with less selective pressure?

• Punctuated Equilibrium

• Gradualism

• Natural Selection

• Genetic Drift

What is Punctuated Equilibrium?

• Periods of quick change followed by periods of stability

• Constant gradual change over time

• No change at all

• Rapid change without stability

A gene pool is:

• a collection of genes in an individual organism.

• the total genetic diversity found within a population or a species.

• a type of swimming pool for genes.

• a method of gene therapy.

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