A group of organisms of a certain species that is in one area at a given time is know as a (an)
A. ecosystem
B. community
C. population
D. trophic level
Answer: C. population
Biology & Microbiology
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Which reservoir holds the largest volume of Earth’s water?
a. groundwater
b. rivers
c. lakes
d. atmosphere
e. polar ice
Biology & Microbiology
Over the past decade, the number of park visitors has _______ and park budgets have ________.
A. increased by more than one half; increased by about 25% B. increased by one third; decreased by about 25% C. decreased by more than one half; decreased by about 25% D. decreased by one third; increased by about 25% E. stayed about the same; decreased by about 25%
Biology & Microbiology
What (and who) was the first reproductively cloned animal?
What will be an ideal response?
Biology & Microbiology
The disappearance of diatoms from the world's oceans would result in an overall increase in the concentration of atmospheric oxygen.
Answer the following statement true (T) or false (F)
Biology & Microbiology