Movement of a substance from an area of low concentration to an area of high concentration using
energy obtained from ATP is called ____.
a. passive transport
b. diffusion
c. facilitated transport
d. osmosis
e. active transport
E
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Estimates of spontaneous mutation rates are made using dominant disorders because
A) it takes several generations for the phenotype to change. B) they do not affect offspring. C) the mutant phenotype is obvious. D) they can be identified by DNA sequencing.
Immature seed cones of conifers are usually green before pollination, and flowers of grasses are inconspicuously colored. What does this indicate about their pollination?
A) They self-fertilize and do not need pollen carried from one plant to another. B) Their pollinating insects are color blind. C) They are wind pollinated. D) They probably attract pollinators using strong fragrances.
What kind of circulatory system do fishes have?
A) tricuspid loop B) open circulatory system C) single loop D) double loop
What is the name given to the viral DNA incorporated into a lysogenic cell?
a. Prophage b. Oncogenic virus c. Latent phage d. Bacteriophage