Speciation occurs more often between allopatric populations than it does between sympatric populations.

a. true
b. false


Ans: a. true

Biology & Microbiology

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A virus is surrounded by a protein coat known as a ____

Fill in the blank with the appropriate word.

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An adjuvant has been developed from lipid A

Indicate whether this statement is true or false.

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What are responsible for the rapid mobilization

of the immune response after a subsequent attack by a pathogen? a. naive B cells b. naive T cells c. NK cells d. memory cells e. macrophages

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Natural selection for a certain phenotype will affect the

A. genotype of a population. B. allele frequency of a population. C. allele frequency of an individual. D. genotype of an individual.

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