A motor unit is what?
What will be an ideal response?
Ans: All of the muscle cells and fibers controlled by a single motor neuron
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At the end of the 2008-2009 influenza season, 100% of influenza A H3N2 and the novel 2009 influenza A H1N1 were resistant to:
a. adamantane. b. oseltamivir. c. Tamiflu. d. Relenza.
If the infecting phage lacks some critical pieces of DNA necessary for replication, it is called
A. incomplete. B. mutated. C. defective. D. vegetative.
Which vessel type regulates the amount of blood a particular area receives?
a. arteries b. arterioles c. capillaries d. venules e. veins
In an equilibrium population
A) population size cannot change. B) allele frequencies do not change. C) rates of gene flow are constant. D) natural selection occurs. E) mutation rates do not change.