The major damage caused by Neisseria meningitidis is a result of
A. its invasion into the central nervous system.
B. its presence in the respiratory tract of 40% of healthy individuals.
C. its ability to be transmitted by droplets among people who live in close contact.
D. the release of lipid A into the tissues, triggering severe inflammation and DIC.
E. the fact that it can survive in cells after phagocytosis.
Answer: D
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The switch from a lysogenic prophage to a lytic cycle is called
A. transformation. B. induction. C. latency. D. phage conversion. E. injection.
The plant hormone ____ is a gas at normal temperature and pressure
a. abscisic acid b. ethylene c. auxin d. salicylic acid e. systemin
The glucose transport mechanism is an example of
a. simple diffusion. b. facilitated diffusion. c. osmosis. d. active transport. e. bulk flow.
While peering through the microscope, a classmate of yours said, "I know that this thing is supposed to be a ciliate, a flagellate, or an amoeba, but I can't figure out which." You replied, "That's easy, ________."
A. watch how it moves B. all you have to do is see whether it has a nucleus C. watch and see what it eats D. see how big it is