Gibberellins have their most dramatic effects
a. on leaves.
b. in promoting abscission.
c. on fruit ripening.
d. on stem lengthening.
e. on flowers.
Answer: d
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The purpose of performing CPR on a person who has experienced sudden cardiac arrest is to ____
a. restart their heart b. ensure an oxygen supply to their brain c. keep their lungs inflated d. restart their heart and ensure an oxygen supply to their brain e. restart their heart and keep their lungs inflated
The pancreatic secretions governing glucose levels are precisely controlled by
a. neural connections to the pancreas. b. the blood-brain barrier. c. cooperative interactions. d. homeostatic feedback loops. e. releasing factors.
Which of the following is not true about enzymes?
A) Enzymes are used up in a chemical reaction. B) Enzymes are made of proteins. C) Enzymes lower the activation energy of a reaction. D) Enzymes increase the probability a reaction. E) None of the above.
What potential consequence on the cardiovascular system may result from smoking?
A) an increase in the production of HDL B) a decrease in the production of LDL C) a higher risk of atherosclerosis D) an increase in the risk for lung cancer