The great apes and first hominids arose from a common ancestor about how many million years ago?

a. 1
b. 3
c. 5
d. 7
e. 9


ANSWER: d

Biology & Microbiology

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Which of the following represents the charged

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how many virus particles per cell does "serum hep" provide?

What will be an ideal response?

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Variations in genes are called ________. Examples of these variations include eye color. There are blue eyes, green eyes, brown eyes, and several combinations of these.

A. polymorphisms B. alleles C. traits D. homeologues

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An enzyme is about the same as a(n) 

A. catalyst. B. inhibitor. C. substrate. D. end product.

Biology & Microbiology