The epidermis (outer layer of the skin) needs to be tough and resistant to shearing and stretching. The type of intercellular junction best suited for this need is a(n) ________.
A. gap junction
B. ion channel
C. desmosome
D. tight junction
Answer: C
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Among the advantages of the cerebral arterial circle is the presence of collateral channels of blood flow to the brain should a supply artery become blocked
Indicate whether this statement is true or false.
In traveling from the heart to the peripheral capillaries, blood passes through:
arteries, arterioles, and venules elastic arteries, muscular arteries, and arterioles veins, venules, and arterioles arteries, venules, veins all of the choices are correct
Is it necessary for a cell to produce one enzyme molecule for every substrate molecule that needs to be catalyzed? Why or why not?
What will be an ideal response?
The enzyme with the lowest pH optimum is ________.
A. lipase B. pepsin C. acid phosphatase D. monoamine oxidase