When one male and one female form a long-term association, the mating system is referred to as ____

a. promiscuous
b. polygamous
c. monogamous
d. polygynous
e. polyandrous


ANSWER: c

Biology & Microbiology

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The concentration of oxygen is lower at high altitudes. Why would this make it harder for a person to get enough oxygen into their blood?

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Which of the following is not a feature common to most animals?

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