Reciprocal innervation of reflexes between antagonistic muscle pairs
a. is the usual basis of coordinated contractions.
b. is the means by which rods prevent cones from being stimulated.
c. refers to the lens adjustments that bring about precise focusing onto the retina.
d. explains the mechanism for the operation of the calcium pump.
e. is a protective function only.
A
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Which of the following is not true of industrial microbiology?
A. Growth environment is enhanced to increase metabolite synthesis. B. Select microbial strains are not controlled by feedback mechanisms. C. Secondary metabolites include amino acids. D. Primary metabolites are essential to a microbe's function.
Because attenuated live vaccines contain viruses that are less virulent, many booster vaccines must be given to produce an effective immune response
Indicate whether the statement is true or false
Organisms with a nucleus are known as:
Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, which develop from similar embryonic tissues. These structural similarities are an example of _____
A) homology B) convergent evolution C) the evolution of common structure as a result of common function D) the evolution of similar appearance as a result of common function