There are usually many tolerance limits responsible for limiting the number and location of a species. However, some organisms have ________ that limit/limits their distribution.
A. many factors
B. a specific critical factor
C. nothing
D. other environmental conditions
Answer: B
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Which of these statement about controlled nuclear fusion is accurate?
A. We have yet to find a way to make it work so that it is useful. B. So far, the tests have yielded a positive net energy. C. It costs considerably less than a conventional fission reactor. D. Bomb-grade materials are required as fuel sources.
One piece of evidence that suggests the existence of Pangaea is the apparent fit of continents across North and South Atlantic
Indicate whether the statement is true or false
Name three features of North America during the Last Ice Age
What will be an ideal response?
Caprocks are:
a. resistant rock layers that form the upper surface of mesas and buttes. b. a crust of salt crystals accumulating on the surface due to evaporating groundwater. c. hat-shaped rocks on top of thin, rock pedestals. d. landforms created by eolian erosion. e. areas of bedrock covered over by sand dunes.