Side A is __________ to side B
a. hypertonic
b. hypotonic
c. isotonic
d. either isotonic or hypertonic
e. either isotonic or hypotonic
Answer: b
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Most Swiss starlings produce four to five eggs in each clutch. Starlings producing fewer or more than this have reduced fitness. Which of the following terms best describes this situation?
A) artificial selection B) directional selection C) stabilizing selection D) disruptive selection E) sexual selection
Inherited differences in hormone receptors on different species will dictate the differences in ________ and ________ behaviors
a. bonding, feeding b. group defense, mating c. bonding, molting d. mating, feeding e. mating, bonding
One characteristic that makes Caenorhabditis elegans attractive for developmental studies is:
a. its small, transparent body. b. the extensive number of genes shared with humans. c. the developmental defects that occur in this organism. d. the close evolutionary relationship between this mammal and humans. e. the presence of zygotic segmentation genes, similar to those found in humans.
Triclosan is a broad-spectrum antibacterial agent used in many household products. It is structurally similar to polychlorobiphenylol, a substrate that binds to the active site of the enzyme sulfotransferase
Based on these facts, you can conclude that triclosan most likely A) acts as a noncompetitive inhibitor. B) functions as an enzyme when sulfotransferase is absent. C) is a competitive inhibitor. D) lowers the activation energy of chemical reactions.