The light bleached color of dying coral in marine ecosystems is most likely the result of
A) exposure to increased levels of sunlight.
B) increased ocean temperatures.
C) increased pH of the ocean.
D) shifts in ocean currents.
B
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The compound 6-aminohexanoic acid is used to make the condensation polymer nylon-6. Polymerization is not always successful, however, because of a competing side reaction. What is this side reaction?
A. One end of the 6-aminohexanoic acid reacts with the other, and this reaction is favored in concentrated solutions. B. One 6-aminohexanoic acid reacts with another, and this reaction is favored in dilute solutions. C. One end of the 6-aminohexanoic acid reacts with the other, and this reaction is favored in dilute solutions. D. One 6-aminohexanoic acid reacts with another, and this reaction is favored in concentrated solutions.
The more one eats from the local food shed, the more one is likely to be a(n)
A) locavore. B) omnivore. C) vegetarian. D) herbivore. E) carnivore.
At the population level, parasites are always harmful to the host species.
Answer the following statement true (T) or false (F)
Storms that form in the tropics are given names when
a. ?they reach tropical storm strength. b. ?they become fully developed hurricanes. c. ?they approach to within 250 miles of land. d. ?rotation becomes visible on a satellite photograph. e. ?as soon as they form.