All of the following are parts of the sperm except
a. mitochondria.
b. a nucleus.
c. a flagellum.
d. a diploid set of chromosomes.
e. an acrosome.
D
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Which neuronal structure has the greatest density of voltage-gated Na+ channels, resulting in the lowest threshold
potential along a neuron?
a. dendrites b. cell body c. axon hillock d. axon e. axon terminals
The figure shown above is of what kind of
tissue? a. blood b. adipose c. bone d. cartilage e. dense connective
Which evolutionary process describes the movement of members of a species from one population to another?
A) natural selection B) migration C) mutation D) random genetic drift E) population genetics
Which of the following is NOT true about reverse transcriptase?
A. In RNA viruses it uses a DNA intermediate to make more RNA B. It does not enable HIV to infect the cells C. It can be found in DNA and RNA viruses D. It is a type of polymerase E. In DNA viruses it uses an RNA intermediate to make more DNA