Nitrogen has 7 electrons and can form a maximum of ________ bonds with other elements.
A. 1.
B. 2.
C. 3.
D. 4.
E. 5.
C. 3.
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Interferons, complement, lysozyme, and lactoferrin are all examples of
A. specific antimicrobial factors. B. immune enzymes. C. nonspecific antimicrobial factors. D. cytokines.
A virus reproduces by
A. laying eggs in a host cell. B. taking control of a host cell and directing it to produce viral components. C. the exchange of gametes. D. binary fission.
What was the perceived fundamental conflict between Darwin's and Mendel's theories?
a. Darwin was a scientist while Mendel was a monk. b. Mendel's experiments were unbiased, while Darwin set out to prove evolution by natural selection. c. Mendel's experiments were based on simple traits while Darwin's evidence was based on complex characteristics. d. Mendel's theory was based on experimentation while Darwin's was based on observation.
Which form of diabetes is most common?
a. type 1 b. type 3 c. type 2 d. gestational