Which of the following statements most accurately describes the benefits of Bt corn?
A) Because it contains a certain gene removed from a soil bacterium, Bt corn is immune to the European corn borer.
B) Bt corn is resistant to the pesticide Bt, so farmers growing Bt corn can use Bt on the weeds in their cornfields without it harming their crop.
C) Bt corn produces increased yields because it is resistant to infection from the Bt virus that lives in agricultural soils.
D) Although Bt corn has its benefits, the use of Bt corn runs the risk of pests becoming immune to its toxins.
A
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In a temperature inversion
A. warm air overlies cold air B. cold air overlies warm air C. clouds cover the ground D. fog forms
Which of the following is true of the monomeric units which react to form Kevlar?
A) They are both 1,4-disubstituted benzene derivatives. B) They are both 1,3-disubstituted benzene derivatives. C) They are both 1,2-disubstituted benzene derivatives. D) None of the above is true.
The Demographic Transition is based on the historical experience of Eastern Europe and Russia
Indicate whether the statement is true or false
What is the most abundant element in the atmospheres of Jupiter and Saturn?
A) hydrogen B) helium C) nitrogen D) ammonia