Which statement about the large intestine is FALSE?
a. It is also called the colon.
b. It harbors beneficial bacteria.
c. It is involved with the absorption of sodium.
d. It is involved with the absorption of water.
e. It secretes digestive enzymes.
e
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Allivibrio fischeri symbionts benefit the Hawaiian bobtail squid by
A) mimicking the light of the moon, which helps the squid avoid nocturnal predators. B) providing essential amino acids missing from the squid's diet. C) degrading the cellulosic cell walls of the phytoplankton the squid eats. D) providing essential amino acids missing from the squid's diet and degrading the cellulosic cell walls of the phytoplankton the squid eats.
Support the argument that species in the grass family, Poaceae, are the most important seed plants today
What will be an ideal response?
All of the following are components of Darwin's principle of natural selection EXCEPT that
a. new alleles are constantly produced through mutation. b. populations exhibit great variation. c. organisms produce more offspring than can be sustained by the environment. d. over time, adaptive phenotypes increase in frequency within a population. e. variation can be inherited.
Which of the following is considered part of a living organism's metabolism?
A) secretion of wastes B) growth and development C) responses to external stimuli D) reproduction