The most abundant element in the human body, by weight, is ________.
A. hydrogen
B. carbon
C. nitrogen
D. oxygen
E. calcium
Answer: D
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The structure that supports the spiral organ is the
A) tectorial membrane. B) basilar membrane. C) membranous labyrinth. D) vestibular duct. E) tympanic membrane.
Which of the following mechanisms produces the most ATP during cellular respiration?
A) oxidative phosphorylation B) substrate-level phosphorylation C) oxidation-reduction reactions D) oxidation reactions
Which of the following was NOT an accomplishment of early sex researcher Magnus Hirschfeld?
A. He established the first journal on the study of sex. B. He was the first to observe the ovum in humans. C. He administered the first large-scale sex survey. D. He established a marriage counseling service.
Exocrine glands are considered to be a type of connective tissue because ________
A) they produce secretions, not hormones B) they develop from mesenchyme C) their ducts connect them to a surface D) exocrine glands are epithelial tissue, not connective tissue