Changes that lead to the formation of new species are called

________________ isolation is necessary for speciation to occur.

Different courtship rituals are an example of __________ isolation.

When populations are separated by barriers such as water, mountains, ________ isolation occurs.

Species reproducing at different times of day or year would be ________ isolation.

When the gene pool of a population changes over time, ________ has occurred.

______________ traits lead to many different phenotypes.

A scientific ____________ is a well-supported testable explanation of natural phenomena.

The Galapagos Islands are located near

Darwin's travels involved the HMS __________.

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