In this chemical synapse, which structure represents the vesicle releasing neurotransmitter molecules?
a. A
b. B
c. C
d. D
e. E
B
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When two excitatory postsynaptic potentials (EPSPs) occur at a single synapse so rapidly in succession that the postsynaptic neuron's membrane potential has not returned to the resting potential before the second EPSP arrives,
the EPSPs add together producing _____. A) temporal summation B) spatial summation C) tetanus D) the refractory state E) an action potential with an abnormally high peak of depolarization
Echinoderms often have an important ecological effect on their environment. Provide at least 2 examples of their effects in particular locations
What will be an ideal response?
In ______ diabetes, no insulin is provided.
Fill in the blank(s) with the appropriate word(s).
Identify the major tumor suppressor gene that is more frequently mutated in human cancers than any other known gene.
A. hemoglobin gene B. p53 gene C. p16 D. RB tumor-repressor gene E. ras oncogene