What is the major limiting factor for benthic communities on continental shelves?
a. Food
b. Space
c. Substrate
d. Light
a
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How much Golden Rice will supply a child’s daily need for the vitamin that is converted from beta-carotene?
a. two teaspoons b. a half of a cup c. one cup d. one quart e. one pint
Which of the following molecules is not produced during the breakdown of phospholipids?
A) glucose B) glycerol C) acetyl groups D) fatty acids
What is the primary function of cellular respiration?
a. to oxidize glucose b. to produce proteins c. to regenerate ATP d. to metabolize nutrients
Which of the following is an example of a photoautotroph?
A) cyanobacteria in freshwater and marine ecosystems B) mushrooms growing on the side of a dead tree C) bacteria in our mouth D) fungi growing in the refrigerator E) grizzly bears in Alaska