Biology, 27.08.2019 20:00 elizediax6421
Which of the following describes a cyclical change in an ecosystem?
a. an area receives less rain each year for many years.
b. the water level in lake ontario peaks and dips every few years.
c. coyotes migrate to an area where no coyotes lived before.
d. a population of juniper trees is replaced by poplar trees.
Answers: 1
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The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?
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Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.
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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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Which of the following describes a cyclical change in an ecosystem?
a. an area receives less...
a. an area receives less...
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