Two species of toads have been successfully interbred in a laboratory but do not hybridize in nature because one species mates in summer and the other mates in the fall. This is an example of ____ isolation.

a. reproductive
b. ecological
c. inbred
d. physical
e. genetic


ANSWER: a. reproductive

Biology & Microbiology

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Indicate whether the statement is true or false.

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A bacterium that uses the oxidation of inorganic compounds to provide energy for manufacturing nutritious organic

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