Ca+ ion channels are found:
A. only at the axon terminal membrane.
B. only along the terminal ends of the
dendrites.
C. throughout the length of the axon.
D. throughout the entire neuron.
E. only at the axon hillcock.
A
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What does it mean if a plant is dioecious?
A. There is double fertilization of the embryo. B. Pollination and fertilization are separate events. C. There are separate male and female sporophytes. D. The sporophyte and the gametophyte are on the same plant.
Polar molecules that associate readily with carbon dioxide are hydrophilic
Indicate whether the statement is true or false.
Canadian researchers found that loud noise had
which of the following effects on a local songbird? a. 20% reduction in weight gain b. 15% fewer offspring c. 10% increase in external parasites d. 39% more male offspring e. none of these
________ regulates the kidney's retention of water. Its secretion is suppressed by alcohol.
A. Thyroxine B. Vasopressin (ADH) C. Oxytocin D. Prolactin