Microfilaments function in
A) muscle contraction.
B) cytoplasmic streaming.
C) cell division.
D) maintenance of cellular shape in animal cells.
E) all of the above
E) all of the above
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The optimal pH for enzyme 2 is:
a. 2. b. 3. c. 4. d. 5. e. 6.
Gibberellins
a. were first isolated by a Japanese researcher working with “foolish seedling” rice plants. b. were first isolated from a fungus. c. are represented by more than 80 different types. d. promote stem elongation. e. include all of these descriptions.
When the concentration of glucose in the blood rises following the digestion of a meal, what is the hormonal response?
A) Increased amounts of both glucagon and insulin are released. B) An increased amount of glucagon is released. C) An increased amount of insulin is released. D) Glucagon and insulin levels in the blood stay the same.
An animal that effects changes to make itself look larger is exhibiting
A) a desire to fight. B) an aggressive display. C) a submissive posture. D) a readiness to mate. E) dominance in a social group.