For most domestic animals, trophic-level efficiency is usually ________
A) approximately 30%
B) greater than 10%
C) less than 10%
D) approximately 20%
E) dependent on what the animals were fed
Answer: C
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What evidence would lead geologists to conclude that granite underlying sedimentary rock is younger than the sedimentary rock?
A) fragments of sedimentary rock included in the granite B) pebbles of the granite included in the bedding of the sedimentary rock C) tilting of the sedimentary bedding D) contact metamorphism between the granite and the deepest sedimentary bedding
In terms of the three-cell general circulation model, the driest regions of the earth should be near:a
the equator and the polar regions. b. the equator and 30o latitude. c. the equator and 60o latitude. d. 30o latitude and 60o latitude. e. 30o latitude and the polar regions.
What does the law of diminishing marginal utility posit?
A) As a person consumes decreasing quantities of a given good, the pleasure she derives from it increases. B) As a person consumes increasing quantities of a given good, he must produce more to afford it. C) As a person consumes increasing quantities of a given good until he is satisfied. D) As a person consumes increasing quantities of a given good, the pleasure she derives from it increases, but at a decreasing rate. E) Over time, and through experience, people learn what quantities of a given good give them the greatest pleasure.