The theory of genetics was initially developed by studying
a. giraffes. d. mice.
b. peas. e. cyanobacteria.
c. humans
B
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Compared to microtechnology, nanotechnology focuses on a scale that is about
A. 10 times smaller. B. 1000 times smaller. C. 100 times smaller. D. a million times smaller.
What do the brackets in the following equation represent?[H3O+] × [OH-] = Kw
A. The molecule in brackets is undergoing hydrogen bonding with the other molecule in brackets. B. The molecule inside does not react with the other molecules in brackets. C. The first molecule in brackets is an acid and it reacts with the second molecule in brackets, which is a base. D. The brackets mean the molarity of the compound inside them. E. none of the above
Which of the following about Bt crops is true?
A) They are GM plants that incorporate the gene for producing a potent bacterially produced insecticide. B) They produce chemicals that interfere with the molting of insect pests. C) They should always be planted in pure stands to reduce the chance of Bt resistant pests. D) They produce chemicals that are similar to insect pheromones, interrupting pest mating cycles.
In some cases where a stationary front butts up against a mountain range winds blowing upslope can generate ____ (upslope precipitation) if there is enough moisture in the air
a. heavy rain b. heavy snow c. hail d. thunderstorms e. light rain or snow