Evolution

Darwin's theory of evolution is supported by his idea on (a)  

• natural selection and adaptation
• natural living animals like fossils
• chickens have the same amount of ge

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A structure that is inherited from ancestors but has long lost much or all of its original use.

• vestigial structure
• miniscule structure
• analogous structure

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A term for a group of similar organisms that can reproduce fertile offspring is _____.

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In natural selection, the selective agent is the (a)   .

• humans
• mutations
• breeders
• environment

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which of the following is an example of a vestigial structure?

• the wings of a red-tailed hawk
• the hind limbs of a house cat
• the fins of sharks
• the wings of an ostrich

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VA.BIO.7

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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Genetic variation can arise from a random change in the DNA of a gene.  The change is called a(n)

• mutation
• gene flow
• gene pool
• allele

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The process in which humans breed organisms for certain traits is called _____.

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How would you describe these two features?

• Homologous structure
• Analogous structure
• Structural adaption
• Functional adaption

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The "Best" form of evidence for evolutionary relationships is-

• Molecular- DNA

• Fossils

• Homologous Structures

• Analogous Structures

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