Which of the following energy forms is low-quality?
a. high-speed wind
b. concentrated sunlight
c. the heat dispersed in the ocean
d. the energy released by burning wood
e. the energy released by burning coal
Answer: c. the heat dispersed in the ocean
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The plant tissue responsible for transporting the sugars produced during photosynthesis is the
A. phloem. B. stomata. C. leaf. D. xylem.
Research performed by Edward O. Wilson on ____ has been applied to the study and understanding of other social organisms, including humans.
A. ants B. worms C. bees D. chimpanzees E. elephants
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35°F. The most likely reason for this apparent discrepancy is that
a. ?temperature readings are taken in instrument shelters more than 5 feet above the ground. b. ?the thermometer was in error. c. ?the newspaper reported the wrong temperature. d. ?the thermometer was read before the minimum temperature was reached for that day. e. ?the thermometer was read incorrectly.
Which plants have sperm that swim through the environment to reach the eggs?
A. mosses only B. mosses, ferns, and seed plants C. mosses and ferns D. seed plants only