Identify the components of the cardiovascular system
A) heart and blood vessels
B) heart and blood
C) blood and blood vessels
D) heart, blood, and blood vessels
E) blood vessels and lymphatic vessels
Answer: D
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The mechanical force of contraction is generated by ________
A) shortening of the thick filaments B) shortening of the thin filaments C) a sliding of thin filaments past thick filaments D) the "accordion-like" folding of thin and thick filaments E) the temporary disappearance of thin filaments
Shivering raises body temperature because:
it decreases warm blood flow to the core while increasing flow to the muscles it depresses metabolism it increases heat production up to 18 times that of resting levels the process of muscle contraction produces heat
Amino acids can be used to synthesize proteins for cellular structures, to synthesize proteins that function in various body processes, and for energy.
Answer the following statement true (T) or false (F)
Given what you know about the timing of ovulation in a woman's 28-day cycle, when would she be most likely to get pregnant?
A. Days 12-15 B. Days 1-6 C. Days 7-11 D. Days 16-28