In which of the following will isotopes of an element always differ?
a. number of protons
b. number of electrons
c. atomic mass
d. atomic number
e. None of the listed responses is correct.
Answer: c. atomic mass
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A substrate binds an enzyme as a signal molecule binds a
A. second messenger. B. kinase. C. receptor. D. transcriptional factor. E. G-protein.
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A) broad-sense B) narrow-sense C) multifactorial D) generic E) genetic
The scientific study of the diversity of organisms and the evolutionary relationships between them is referred to as:
a. ecology. b. taxonomy. c. systematics. d. evolutionary biology. e. biological classification.
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A) Herbivore B) Omnivore C) Carnivore D) Ruminant