The disease in the above photograph is caused by
a. syphilis.
b. gonorrhea.
c. chlamydia.
d. all of these.
e. none of these.
Answer: c
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Tetrazolium chloride is used by the seed industry to indicate
(a) if a seed is undergoing photosynthesis. (b) if seeds are undergoing aerobic respiration. (c) if seeds are alive. (d) both b and c.
The structure(s) critical to the function of a chemical synapse include
_____ gap junctions. _____ neurotransmitters. _____ vesicles. _____ voltage-gated Ca2+ channels. _____ electrical signals.
The function of adenylyl cyclase is to:
A. cleave PIP2 into DAG and IP3. B. stimulate the release of calcium from the endoplasmic reticulum. C. catalyze the conversion of ATP to cAMP. D. directly activate protein kinase A (PKA).
A neuron can relay a more intense signal by ________
A) sending a stronger action potential B) sending more action potentials in a given amount of time C) sending an action potential that travels more quickly D) sending a longer action potential