The illustration shows a cell in ____ of
mitosis.
a. anaphase
b. metaphase
c. interphase
d. prophase
e. telophase
D
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Bacteria that naturally exhibit bioluminescence have been found in which of the following genera?
A. Pseudomonas B. Pasteurella C. Shigella D. Vibrio
The symptoms and signs of Friedreich's ataxia
include all of the following EXCEPT a. loss of coordination. b. iron buildup in mitochondria. c. serious heart problems. d. liver failure. e. weak muscles
In 1932, researchers Emerson and Arnold showed that the rate of photosynthesis saturated at a lower light intensity than expected for the number of individual chlorophyll molecules. From this observation they determined
A. that pigments were clustered in photosystems and they were measuring saturation of pigments in reaction centers. B. that high light intensities destroyed most pigment molecules. C. that they had overestimated the number of chlorophyll molecules present in their test organism. D. that plants must be able to fix carbon before their pigments can absorb light.
Which one of the following is the most rigorous form of professional regulation?