GMO crops such as ____ help farmers use smaller amounts of toxic pesticides because these crops are pest resistant
a. glyphosphate
b. Golden Rice
c. A. tumefaciens corn
d. Ti corn and rice
e. Bt corn and soy
ANSWER: e
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Which of the following is an example of neoteny?
A. relatively little body hair on adult humans B. bipedal locomotion of adult humans C. dying your hair blond D. graying hair as you age E. opposable thumbs
Which of the following is not an advantage of anaerobic sludge digestion?
A. Heavy metals are concentrated in the sludge. B. Most of the biomass produced aerobically is used for methane production. C. The remaining sludge can be dried easily before disposal. D. All of these choices are correct.
A decrease in relative abundance of a species can lead to
a. an increase in predator avoidance. b. replacement species. c. a change in ecosystem structure. d. rapid growth in the depressed population. e. greater ecosystem stability.
Magnification
a. is the amount that an object's image is enlarged. b. is the extent to which detail in an image is preserved during the magnifying process. c. is the degree to which image details stand out against their background. d. focuses light rays emanating from an object to produce an image.