The ________ is formed by the allantois, blood vessels, and yolk sac
A) umbilical cord
B) chorion
C) chorioallantoic membrane
D) trophoblast
E) amnion
A
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Which of the following is not a component of the vulva?
A. Clitoris B. Cervix C. Vaginal orifice D. Mons pubis E. Labia minora
In order for the excitation-contraction coupling to occur, the production of an action potential must occur within the ______ of a muscle fiber
A. contraction B. sarcolemma C. junction
Which of the following are characteristics of ribonucleic acid (RNA)? check all that apply.
a) it contains a sugar called deoxyribose b) it contains nitrogenous bases A, U, C, G c) it is always double-stranded d) it leaves the nucleus and can be found in the cytoplasm e) it plays an important role in the production in the production of proteins
Painful inflammation of a vein associated with edema and skin discoloration is called __________.
Fill in the blank(s) with the appropriate word(s).