Myelin is a fatty substance that

a. slows action potentials.
b. is wrapped around neuroglial cells.
c. increases the speed of action potentials.
d. is found only surrounding neurons of the
central nervous system.
e. is true of a and d only.


C

Biology & Microbiology

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Which of the following represents a long-distance signaling mechanism?

A. contact-to-contact signaling B. intercellular signaling C. autocrine signaling D. paracrine signaling E. endocrine signaling

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What are the correct order of the basic steps of the scientific method?

a. observe --> hypothesize--> predict --> experiment --> interpret b. predict --> hypothesize --> experiment --> observe --> interpret

c. hypothesize --> observe --> predict --> experiment --> interpret d. observe --> predict --> hypothesize --> experiment --> interpret e. hypothesize --> predict --> experiment --> observe --> interpret

Biology & Microbiology

Total distance traveled by the time of travel

What will be an ideal response?

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Diastolic pressure is when the heart atria are relaxing.

Answer the following statement true (T) or false (F)

Biology & Microbiology