Particles suspended in the sea are called:
a. seston.
b. tripton.
c. bacterioplankton.
d. viriplankton.
e. nekton.
A
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Sticky ends are so named because ____
a. they are single stranded and will base pair with complementary sequences b. covalent bonds spontaneously form between them to form a continuous DNA molecule c. primers hybridize to them during the first step of PCR d. they hybridize to a DNA sequence of interest e. they stick to invading viral DNA
If you were searching for anaerobic bacteria,
you would NOT look for them in a. the guts of farm animals. b. swamps. c. shallow, running water. d. sediments of lakes and oceans. e. canned goods
What is the main function of the molecule shown in the figure above?
A. Chemical messenger B. Energy currency C. Hereditary information D. Metabolism of fats E. Protein synthesis
Which portal of entry is mismatched to its description?
A) ocular: via the conjunctiva B) gastrointestinal: often involves fecal-to-oral transmission C) urogenital: often associated with sexually-transmitted pathogens D) otic: pathogen enters via the ear E) parenteral: pathogen is passed from mother to child through the placenta