The cells capable of releasing histamines are ____
a. mast cells and basophils
b. basophils and eosinophils
c. mast cells and eosinophils
d. natural killer cells and macrophages
e. B and T cells
ANSWER: a
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Anaerobic organisms live in ____ areas
a. nitrogen-free. b. oxygen-rich. c. oxygen-free. d. hydrogen-free. e. carbon-free.
What characteristic of the polymerase isolated from Thermus aquaticus makes it unique and highly useful for maintaining the enzyme efficiency during PCR?
What will be an ideal response?
This 1-inch section of the brain controls the breathing rhythm and heart rate
A) temporal lobe B) hippocampus C) occipital lobe D) medulla oblongata
What does nitrazoxanide do in order to treat infections with Giardia and Cryptosporidium as well as against certain parasitic worms?
A) paralyzes the protozoans B) targets nucleic acids C) blocks anaerobic energy metabolism in protozoa D) interferes with glucose uptake by targeting microtubules E) the mechanisms of action are unclear