• An ecosystem only has a certain amount of
to support a certain number of organisms.
or...
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Which of the following represents a negatively charged ion? of t 7
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Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil
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The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons
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