What organelles are the sites of protein synthesis?
A. nucleus
B. centrioles
C. lysosomes
D. mitochondria
E. ribosomes
E
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Elevated blood pressure under resting conditions results in increased urinary output because
A. aldosterone levels increase. B. baroreceptors signal the hypothalamus to decrease ADH secretion. C. baroreceptors signal the hypothalamus to increase ADH secretion. D. elevated blood pressure stimulates renin secretion. E. the amount of angiotensin II formed is increased.
The trachea is approximately 10 in. (25.4 cm.) long.
Answer the following statement true (T) or false (F)
The process by which bile breaks up large fat droplets into smaller ones is called ________.
Fill in the blank(s) with the appropriate word(s).
In humans, the yolk sac ________
A) forms the human urinary bladder B) passes nutrients to the embryo after digesting the yolk mass C) is no longer a useful structure D) is the site of origin for blood cells and primordial germ cells