Alopecia is:
A) normal hair loss
B) pathologic change of a tissue
C) hair loss resulting in hairless patches
D) erosion of the skin
C
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Which of the following is not considered a main part of the tooth?
a. root b. cuspid c. crown d. neck
Compared to the nervous system, the endocrine system
A) is not essential to life. B) takes only seconds. C) may have a longer lasting effect. D) does not use receptors.
High-quality ________ proteins are those that provide all the essential amino acids.
A. incomplete B. globular C. complete D. net E. fibrous
The chorion is
A. cushions and protects the embryo with fluid. B. the extracellular fluid around the egg. C. becomes the umbilical cord vessels. D. the first site of blood cell formation. E. the fetal half of the placenta.