Contractions of the stomach muscles ____
a. decrease following a heavy meal
b. move chyme to the small intestine
c. begin the digestion of protein
d. begin the digestion of lipids
e. close the pyloric sphincter
ANSWER: b
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Which of the following conditions if present in the
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The study of common evolutionary characteristics shared between organisms is a field of scientific study known as _________.
Fill in the blank(s) with the appropriate word(s).
Two bird species compete in the forest for the same seeds. If ? = 0.75 and ? = 0.25, then (assuming the same carrying capacity for both)
A) the rate of seed consumption is the same for both species. B) the environment can supply both species since the sum of competition coefficients equals 1. C) species 1 "wins" and will outcompete species 2. D) species 2 "wins" and will outcompete species 1.
A research laboratory is attempting to collect the content of human red blood cells. The type of solution researchers should use to cause blood cells to lyse (burst) would be
A. isosmotic. B. osmotic. C. hypoosmotic. D. hyperosmotic.