Use the following example:A species can withstand a narrow range of temperature. Above 100°F there are no species present. In the range from 97°F to 100°F and 90°F to 94°F there are a few species present. Below 90°F there are no species present.What would you label the range of temperature from 90°F to 94°F for this particular species?
A. Optimal range
B. Range of tolerance
C. Zone of physiological stress
D. Zone of intolerance
E. Tolerance limit range
Answer: C
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If we need to consult population profiles of a nation, in every census the width of each bar in the profile is adjusted to include a measure of the
A) total fertility of the age group. B) age of first reproduction in the age group. C) mortality, aging, and births within the age group. D) size of the family of women of reproductive age.
Some streams can give water to the groundwater system
Indicate whether the statement is true or false
What pesticide has been primarily used historically world-wide to control mosquito populations?
A) DDT B) lead C) synthetic estrogens D) mercury E) PCB