Georges Cuvier and his followers developed the theory of ____, reasoning that each layer of fossils represented the
remains of organisms that had died as a result of dramatic shifts in ancient environments.
a. fossilization
b. uniformitarianism
c. sedimentation
d. catastrophism
e. gradualism
ANSWER: d
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Energy is important to life forms because
A) all life forms require a continuous supply of it. B) it is required to do work. C) it is required to make specific alterations in the cell. D) both choices A and B E) choices A, B, and C
A species is found to exist in one of three
colors. Assuming an epistatic interaction, now many genes would be involved? a. 0. b. 1. c. 2. d. 3. e. 6.
Which is true of heterotrophs?
A) They capture light energy. B) They cannot be unicellular. C) They store energy in the form of heat. D) They can function as autotrophs in an emergency. E) They can obtain energy by consuming phototrophs.
Which statement about the relationship between bacteria and the human body is most accurate?
A) Although many tissues are kept bacteria-free, around 100 trillion bacteria live on or in us. B) Most bacteria are transient; that is, they come for brief periods and then are gone. C) About one-tenth of our body weights are due to bacteria D) Bacteria are found in the mouth, stomach, and intestines in about equal amounts.