What might be the predominant lifestyle on Earth?
A. parasitism
B. mutualism
C. predation
D. commensalism
E. herbivory
Answer: A
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The assumption that there was little free oxygen in
the earth’s first atmosphere is supported by evidence derived from the study of a. ancient iron-containing rocks. b. the ancient atmosphere. c. oceanic sediments. d. moon rocks that formed at the same time as the earth. e. none of these.
________ inhibitors bind reversibly at the active site of an enzyme
Fill in the blank with correct word.
Transpiration is most closely associated with:a
the atmosphere. b. terrestrial plants. c. the ocean.
d. groundwater. e. bacteria.
Which of the following examples best illustrates the concept of spontaneous generation?
a. During flooding, frogs spontaneously arise from mud. b. When a dried bean is moistened and kept wet, it spontaneously transforms into a bean sprout. c. Some sea anemones spontaneously bud newly developed young from their outer skin. d. All of the above. e. A and B, but not C