__________ stores oxygen in the slow-twitch muscle
tissues.
a. Hemoglobin
b. Mitochondria
c. Myoglobin
d. Fermentation
e. None of these
Answer: c
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At which phase are centrioles beginning to move apart in animal cells?
A) telophase B) anaphase C) prometaphase D) metaphase E) prophase
If you applied a toxin that blocked non-voltage-gated potassium channels (i.e., the potassium "leak channels") in a resting neuron, it would cause the membrane potential to be
A. less negative. B. more negative. C. No change would be observed.
The movement of xylem sap is best described from ____ to ____
a. the shoot system; the root system b. sinks; sources c. the root system; the shoot system d. sources; sinks e. none of these
The part of the brain that controls the basic responses
necessary to maintain life (such as breathing and heartbeat) is the a. medulla oblongata. b. corpus callosum. c. pineal gland. d. cerebellum. e. cerebral cortex.