What is the firing rate of a neuron?
A. the magnitude of a depolarization
B. the magnitude of an action potential
C. the number of action potentials generated
over a given period of time
D. it's related to the resting membrane
potential
C
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Plant respiration occurs in
a. chloroplasts. b. mitochondria. c. the surrounding air. d. More than one answer is correct.
What molecule provides the energy for muscle contraction?
a. ATP b. GTP c. cyclic AMP d. NADH e. FADH
Which is a characteristic of malignant cells?
a. abnormal plasma membrane and cytoplasm; abnormal cell division b. normal plasma membrane and cytoplasm; abnormal cell division c. abnormal plasma membrane, normal cytoplasm; normal cell division d. normal plasma membrane, abnormal cytoplasm; abnormal cell division e. normal plasma membrane and cytoplasm; normal cell division
One function of antibodies is to ________
A) deactivate defensive proteins
B) stimulate the production of antigens
C) phagocytose invading bacteria
D) clump invader cells