The principal of limiting factor states that survival, growth, and _____ of a species in an ecosystem are determined by the critical resource in least supply.
Fill in the blank(s) with the appropriate word(s).
reproduction
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The most important factor in determining which biome is found in a particular area is
A. soil type. B. topography. C. magnetic fields. D. climate. E. rock cycle.
An oxygen sag curve occurs when
a. Fish population numbers sag. b. Heavy metals that have entered a stream bind oxygen molecules and remove them from the available oxygen supply. c. The breakdown of biodegradable wastes by bacteria lowers the available oxygen in the water for organisms with high oxygen requirements. d. Carbon dioxide values exceed dissolved oxygen values. e. Oxygen content in the air around a particular body of water becomes slightly lower than normal
Externalities, or the costs associated with the harmful side effects of producing goods and services, are reflected in the
cost of those goods and services. a. True b. False
Recent immigrants to the U.S. are more likely to be
A) Protestant. B) Catholic. C) Buddhist. D) Jewish.