Which if FALSE about normal microbiota?
A. Regularly cause infections
B. Can benefit the body
C. Lives within the body
D. Lives on our bodies
Ans: A. Regularly cause infections
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Which part of a plant cell 'captures' the photons of light for photosynthesis?
Why are flu vaccinations recommended for individuals on a yearly basis?
a. Live viral vaccines revert to disease-causing forms after a year if not replaced. b. The body cannot create new flu antibodies, so they must be replaced yearly. c. Mutations alter viral markers, rendering previous vaccination ineffective. d. Yearly vaccinations allow scientists to track which vaccinations were effective.
Which hormone is released by platelets?
a. serotonin b. somatotropin c. acetylcholine d. GABA e. dopamine
Planting trees can combat global warming because
a) photosynthesis from those trees absorbs O2, a greenhouse gas, from the atmosphere b) photosynthesis from those trees absorbs CO2, a greenhouse gas, from the atmosphere c) photosynthesis from those trees will produce carbohydrates that can be used as a greenhouse-gas-free fuel d) in the process of photosynthesis, the leaves of those trees will intercept photons from the sun, thus reducing the amount of heat reaching the earth e) the shade from the leaves of the trees will cool the earth