Which of the following is true of fatty acids?
A) They are branched carboxylic acids containing 6 to 12 carbon atoms.
B) They are unbranched carboxylic acids containing 6 to 12 carbon atoms.
C) They are branched carboxylic acids containing 12 to 20 carbon atoms.
D) They are unbranched carboxylic acids containing 12 to 20 carbon atoms.
D
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Carnivores (secondary consumers) derive their energy from other animals and not directly from plants
Indicate whether the statement is true or false.
Deposits of a resource that have been identified and are commercially extractable at present prices are called:
A) reserves B) marketable deposits C) fossil fuels D) extractables E) foreign exchange earners
Thermally-generated eddies typically peak
a. ?at sunrise. b. ?around midnight. c. ?at sunset. d. ?at noon. e. in the afternoon.
Shoreline retreat is a natural process that humans have made worse in recent years. Which of the following is NOT a major factor in the rate at which shorelines move inland?
A. coastal development B. sea-level rise C. frequency of storms D. disruptions in sediment supply