In natural communities, some feedback mechanisms operate whenever populations change in size; they are
A) density-dependent factors.
B) density-independent factors.
C) always within the individuals of the community.
D) always outside the individuals of the community.
E) the same as genetic drift.
Correct Answer:
Verified
Q20: A single place or outlet that causes
Q30: A substance that in some way harms
Q31: Populations
A) are limited by only one factor
Q32: In the United States, how many metric
Q33: The carrying capacity of an environment is
Q36: Transportation-produced smog causes air to turn
A) gray.
B)
Q37: Which of these is a density-dependent factor
Q38: A growth pattern where a low-density population
Q39: Which of the following is NOT density-independent?
A)
Q40: Human populations can grow at a maximum
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