Which of the following is classified as a trace element in the human diet?
a. potassium
b. iron
c. sulfur
d. magnesium
e. sodium
b
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The process whereby repeated, short stimuli provided to a hippocampal neuron have the effect of strengthening the synapse it makes with other neurons is specifically referred to as
A. long-term potentiation. B. short-term potentiation. C. neurotransmission. D. synaptic reuptake. E. None of these choices are correct.
Which of the following uses plant-derived sugar for fermentation?
a. wood for shelter b. alcoholic beverages c. medicine d. spices
The most economically important bryophyte is:
a. Equisetum. b. Anthoceros. c. Psilotum. d. Sphagnum. e. Lycopodium
One of the first successful applications of genetic engineering was the commercial production of ____.
A. clotting factor B. insulin C. hemoglobin D. collagen E. human growth factor