Which hypothesis states that new species are prevented from entering a community by the existing
species?
a. equilibrium theory of island biogeography
b. facilitation hypothesis
c. inhibition hypothesis
d. intermediate hypothesis
e. tolerance hypothesis
C
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Refer to the graph above. If the myelin fibers were stripped from this membrane, you would expect the action potential cycle to go
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A) much faster than depicted in the graph.
B) much faster than normal but not peak at 30 mV.
C) slower than depicted in the graph.
D) much slower than normal but peak much higher than 30 mV.
E) none of the above
The formation of _____ depends on gene action, interactions within the embryo, interaction with other embryos that may be in the uterus, and interactions with the maternal environment
Fill in the blank(s) with correct word
Thomas Malthus proposed that ____
a. the food supply increases faster than the population b. the population increases faster than the food supply c. the food supply and population increase at the same rate d. artificial selection is the key to evolution e. natural selection is the key to evolution
Which of the following is NOT a characteristic of all living things?
A) metabolism B) motility C) growth D) reproduction E) responsiveness