When an action potential is initiated, ________ flow ________ the cytoplasm of the axon
a. negative potassium ions / into
b. positive sodium ions / into
c. negative sodium ions / out of
d. positive sodium ions / out of
b
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What description applies to the term consilience, which is demonstrated by the evidence for the theory of common descent?
A) The supporting evidence for the theory is derived from different sources. B) The evidence is able to convince even nonscientists who have doubts about the theory. C) Not enough evidence has been gathered to support the theory. D) The theory can never be challenged by new evidence.
The origin of the human species (Homo sapiens)
A. begins with human-like organisms about 100 million years ago. B. involved changes from a herbivore to carnivore way of life. C. involved the direct development of humans from Australopithecus. D. All of these answers are correct.
The idea that river mud left in the sun will turn into frogs illustrates
A) prebiotic evolution. B) spontaneous generation. C) the endosymbiont theory. D) how prokaryotes evolve. E) self-replication.
As long as our sample is large enough, it will be the case that the average outcome for the treated group should have what distribution?
A. Normal B. The same as the underlying population distribution C. Skewed distribution D. T-distribution