Which of the following is a reason for metabolic regulation?

A. Ensure efficient use of energy stores
B. Maintain cell components at appropriate levels
C. Conserve materials
D. All of the choices are correct.


Answer: D

Biology & Microbiology

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The most widely used herbicide in the world, 2,4-D, is a synthetic form of

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If a mutated DNA sequence produces a protein that differs in one central amino acid from the normal protein, which of the following kinds of mutations could have occurred? View Available Hint(s) If a mutated DNA sequence produces a protein that differs in one central amino acid from the normal protein, which of the following kinds of mutations could have occurred?

a. A deletion mutation. b. An addition mutation c. None. d. An addition mutation and a deletion mutation.

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Which of the following describe(s) conotoxins?

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The process illustrated in the accompanying figure is:


a. imbibition.
b. germination in a monocot.
c. apomixis.
d. abscission.
e. germination in a eudicot.

Biology & Microbiology