Which of the following is homozygous dominant?
a. AA
b. aa
c. Aa
d. all of these
Answer: a. AA
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The ocean has mitigated the impact of anthropogenic carbon dioxide production by
A) absorbing 500 billion tons of atmospheric carbon dioxide. B) absorbing over 80% of the trapped heat energy. C) storing 600 billion tons of organic carbon. D) absorbing 500 billion tons of atmospheric carbon dioxide and over 80% of the trapped heat energy.
A prolonged period without rain is causing a major drought in the American Midwestern states. How would you expect crops to respond initially to the stress caused by the drought?
A. They will take in more carbon dioxide. B. They will take in less carbon dioxide. C. They will release more oxygen. D. They will increase rates of photosynthesis. E. They produce fewer secondary metabolites.
Four of the five answers listed below are characteristics of a plasma membrane. Select the exception
a. phospholipid b. fluid mosaic c. lipid bilayer d. hydrophilic tails e. membrane proteins
Plants that show a pattern of stomatal opening and closing that is the reverse of C3 plants are called
A. CAM. B. C4. C. Calvin cycle. D. Temperate.