Blood volume varies with
A. strength of nervous signals.
B. body fat content.
C. bone density.
D. muscle mass.
Answer: B
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The process by which cells secrete cellular products into the extracellular environment is ________.
A. pinocytosis B. exocytosis C. endocytosis D. phagocytosis
The stages that appear during spermatogenesis area: spermatidb: primary spermatocytec: spermatogoniumd: spermatozoone: secondary spermatocyteWhat is the correct order of appearance of these stages?
A. d, b, c, e, a B. b, e, c, d, a C. a, c, b, e, d D. c, b, e, a, d E. c, e, d, a, b
Of the three artery types, the elastic arteries have the better ability to vasoconstrict and vasodilate.
Answer the following statement true (T) or false (F)
The early embryo has a single structure which will become either a penis or clitoris but not both at once.
a. true b. false