Biogeographic Isolation-Standard Bio 4.5

Question 1

Charles Darwin’s study of the Galapagos finches led to an understanding of evolution. How is evolution studied? Check all of the boxes that apply.

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fossil records; DNA evidence; case studies

Question 2

Biogeographic isolation leads to , the formation of a new species.

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speciation

Question 3

In order for speciation to occur, organisms can no longer interbreed. This is known as .

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reproductive isolation

Question 4

The isolated population undergoes genetic change through random mutations.

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Step three

Question 5

Biogeographic isolation separates of a species through geographical and biological forces.

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populations

Question 6

Identify the isolation mechanisms described using the drop-down menus. Differences in courtship or other behaviors prevent mating. Species can no longer interact because they are separated by physical boundaries. Species do not interbreed because they breed at different times. Species cannot physically mate due to genitalia or gametes being incompatible.

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Geographical; Anatomical; Temporal; Behavioral

Question 7

The founding population becomes biogeographically isolated from the rest of its species.

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Step two

Question 8

Over time, the population becomes reproductively isolated from the original population.

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Step four

Question 9

The process begins with a founding population.

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Step one

Biogeographic Isolation-Standard Bio 4.5 Answers

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