Which protein class directly controls many of the metabolic reactions within a cell?
A) enzymes
B) hydrophilic proteins
C) structural proteins
D) operator proteins
E) repressor proteins
Answer: A
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Which event will not occur during the fall overturn? a. There is a brief burst of primary production
b. Nutrient rich water moves upward. c. Nutrients come to the surface of the water. d. Oxygen rich water will move upwards. e. The thermocline disappears.
Adult cells cannot be used as the source of nuclei for cloning animals
a. True b. False
Dolphins share synapomorphies with dolphins
_____________________ Indicate whether the statement is true or false.
Cigarette smoking causes cancer due to the
A) effects they have on our breathing mechanisms. B) chemical compounds in the smoke. C) fact that the chemical compounds are resistant to human immune systems. D) immunosuppressive effects they display.