Which nerves generally dominate internal events when environmental conditions have little affect on
normal body functioning?
a. ganglia
b. pacemaker
c. sympathetic
d. parasympathetic
e. all of these
D
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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.
Dispersion is
A. the spatial distribution of abiotic factors. B. the ability of an individual to move. C. the spatial distribution of individuals. D. the rate of movement of a population. E. the timing of reproduction.
What term describes an organism's physical appearance?
A biological select agent spread by (aerosols/contact/ingestion) has a high threat level.
Fill in the blank(s) with the appropriate word(s).