Bulk flow of organic compounds is indicated
by
a. A.
b. B.
c. C.
d. D.
e. E.
D
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What basal transcription factor is most often affected by regulatory transcription factors?
A. TFIIB B. TFIID C. TFIIE D. TFIIF
Thick- skinned rhinoceroses and elephants were once classified together as pachyderms (meaning "thick skin"). They actually descended from different ancestors that in turn evolved from a thin-skinned common ancestor that was not included in the pachyderms. Pachyderms were therefore, as a taxon,
A. monophyletic. B. polyphyletic. C. paraphyletic. D. a supergroup. E. a kingdom.
In the illustration, which group is the least inclusive?
a. Canis familiaris b. Animalia c. Chordata d. Mammalia e. Canidae
Given that an unknown atom's mass number (AMU) is 27, its combination of particles could be
A. 27 electrons, 16 neutrons, 16 protons. B. 27 neutrons, 27 protons, 27 electrons. C. 15 neutrons, 12 electrons, 15 protons. D. 16 electrons, 11 neutrons, 16 protons.