Plasma cells have a life span of about _________, which is mainly spent in the _________
A.
5 days; blood
B.
5 days; lymph nodes
C.
130 days; blood
D.
130 days; lymph nodes
B
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The working distance for a 10× objective lens is ________.
Fill in the blank(s) with the appropriate word(s).
In cardiac muscle, the fast depolarization phase of the action potential is the result of ________ membrane permeability to ________ ions
A) increased; sodium B) increased; potassium C) decreased; calcium D) decreased; sodium E) increased; chloride
The lipid in oil glands is released through which type of secretion?
A) eccrine B) apocrine C) merocrine D) endocrine E) holocrine
Which of the following is not a factor that binds cells together?
A) glycoproteins in the glycocalyx B) glycolipids in the glycocalyx C) wavy contours of the membranes of adjacent cells D) special membrane junctions