A fruit that develops from several ovaries in a single flower, such as a raspberry, is called a(n)
a. aggregate fruit.
b. accessory fruit.
c. multiple fruit.
d. simple fruit.
e. compound fruit.
A
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Compare proteins to nucleic acids. Which of the following is true?
A) Both have primary and secondary structure. B) Both contain sulfur. C) Both take on structural roles in the cell. D) Both have monomers, which contain phosphorus.
Which of the following is the most precise description of the role of enzymes in catalyzing biochemical reactions?
A. Enzymes provide the necessary activation energy to overcome the transition state. B. Enzymes stabilize the transition state and decrease its free energy. C. Enzymes cut hard to break bonds allowing the reaction to proceed. D. Enzymes increase the G of the reactions making them proceed rapidly. E. Enzymes decrease the G of the reactions making them proceed rapidly.
The radioactive decay of carbon-14 can be used to determine
a. relative dating. b. absolute dating. c. mutation rates. d. plate tectonics. e. extinction rates.
To be diagnosed as having hypertension, you consistently will have a diastolic pressure of ______ mm
Hg and a systolic pressure of _____ mm Hg. a. 120; 80 b. 80; 120 c. 90; 140 d. 140; 90 e. 120; 73