What molecule is the body’s main energy source?
a. oxygen
b. carbon dioxide
c. glucose
d. fats
e. proteins
ANSWER: c
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A deleterious mutation in recA results in
A) a decrease in specific recombination. B) a decrease in homologous recombination. C) an increase in homologous recombination. D) no change in either general or specific recombination.
Water has a molecular weight of 18 g per mole, and glucose has a molecular weight of 180 g per mole
Which of the following would have an approximately equal number of water and glucose molecules?
a. 1 g of water and 180 g of glucose b. 90 g of water and 9 g of glucose c. 180 g of water and 1 g of glucose d. 9 g of water and 90 g of glucose e. 90 g of water and 90 g of glucose
The primary immune response can take up to ____ for the antibody to peak, whereas the secondary immune response can take up to _____ for the antibody to peak.
What will be an ideal response?
Autotrophs must acquire carbon from organic molecules produced from other organisms.
a. true b. false