The rate at which population size grows or declines depends on the rate of _____

a. births d. emigration
b. deaths e. births and deaths
c. immigration f. all of these


.F

Biology & Microbiology

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Which of the following statements DOES NOT characterize decomposers?

A. They feed on nonliving organic matter. B. They are saprobes. C. They break down wastes. D. They release nutrients that other organisms can use. E. They contain endosymbionts.

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A piece of petrified wood was once part of a living organism, but its tissues have been replaced by minerals and it no longer exhibits most properties of life, except for

What will be an ideal response?

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Children sometimes pick up "bloodsuckers" in ponds, but these segmented animals typically spend most of their time parasitizing turtles. Some are used medicinally to improve blood flow and reduce inflammation near injuries in humans. They are _____.

Fill in the blank(s) with the appropriate word(s).

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Increased strength and reduced risk of kidney disease are benefits of cardiorespiratory fitness.

a. true b. false

Biology & Microbiology