The most accurate description of SPATIAL summation is
A. Several inputs from the SAME presynaptic cell arrive in rapid succession, summing into a larger depolarization that brings the neuron over the threshold for an action potential.
B. Several inputs from DIFFERENT presynaptic cells create EPSPs that sum together to bring the neuron over the threshold for an action potential.
Answer: B
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The mucus cocoon of parrotfish is used as a means of:
a. masking the fish's scent. b. discouraging parasites from attaching. c. capturing plankton prey. d. maintaining osmotic balance. e. maintaining thermal constancy
__________ sampling can be used to estimate the population density for mobile animals and involves capturing and
releasing individuals. Fill in the blank(s) with the appropriate word(s).
Red and white blood cells are produced where?
What will be an ideal response?
What are the functions of the large intestine?
A) produce digestive enzymes B) forms feces C) absorb water D) absorb some vitamins E) produce bile