What is false concerning the muscle enhancing
supplement creatine?
a. The FDA banned the sale of creatine.
b. Creatine is a short chain of amino acids.
c. It improves performance in brief, high-intensity
exercise
d. It may strain kidneys.
e. Commercial creatine products are not regulated.
Answer: a
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While wastewater is in an activated sludge tank, much of the organic matter is
A) oxidized. B) adsorbed to the floc. C) incorporated into microbial cells. D) oxidized, adsorbed to the floc, and incorporated into microbial cells.
The structure labeled "A" in this figure of a replication fork represents ____
a. single-stranded binding protein b. primase c. DNA ligase d. helicase e. DNA polymerase
Which of these characteristics is NOT found (or only rarely found) in the amphibians but is developed in reptiles?
a) aquatic larvae b) eggs with gelatinous covering c) internal fertilization d) thin, moist skin e) small, inefficient lungs
How many chromosomes do human gametes (egg or sperm) have?
A. 23 B. 45 C. 46 D. 47