Which of the following are examples of macromolecules?
A. lipids, nucleic acids, and nucleotides
B. simple sugars, lipids, and complex carbohydrates
C. protein, nucleotides, and lipids
D. complex carbohydrates, proteins, and nucleic acids
E. nucleotides, complex carbohydrates, and lipids
Answer: D
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Marine fouling is
A) damage to ocean structures that is the result of corrosion by pesticides. B) encrusting of ships, piers, and marine pipes by sessile marine organisms. C) controlled both by biocides and low-friction polymers. D) a threat to supplies of fresh water caused by toxins secreted by marine organisms in desalination plants.
Extinctions that are relatively rare events that cause worldwide elimination of numerous species, thus opening a wealth of niches for new organisms to fill are known as ________ extinctions.
A. retrograde B. minimal C. mass D. background
________ comprises just over half of all of the world's GM crops
A) Soybeans B) Tomatoes C) Corn D) Cotton E) Canola
New Zealand's original inhabitants were the Maori, who came to the islands around the fifteenth century.
a. true b. false