Carbon primarily cycles between
a. animals and plants.
b. animal wastes and rocks.
c. plants and the atmosphere.
d. soil and the atmosphere.
C
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HIV uses which of the following processes to synthesize a DNA strand using its RNA genome as a template?
a) conjugation b) reverse translation c) reverse transcription d) transcription e) translation
To form organic molecules from inorganic molecules it would have been necessary to have
A. protocells. B. a source of energy. C. an atmosphere with ozone. D. All of these answers are correct.
Gametic incompatibility is an example of
A) hybrid inviability. B) a premating isolating mechanism. C) a geographic isolating mechanism. D) a postmating isolating mechanism.
Place the following listed items in the correct order in relation to the life cycle of a flowering plant: (1 ) fertilization, (2 ) formation of a pollen tube, (3 ) pollination
A) 3, 2, 1 B) 2, 3, 1 C) 2, 1, 3 D) 1, 2, 3