A U.S. submarine surfaced ____ miles from the nearest land in the Arctic and found polar bears hunting on the frozen
sea.
a. 10
b. 100
c. 200
d. 500
e. 1,000
ANSWER: d
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The electrical difference across a neuronal membrane is measured in
A. joules. B. millivolts. C. newtons. D. milliamperes. E. milliwatts.
Green seed color is dominant over yellow seed color. If a plant produces gametes with only
yellow seed color, which of the following must be true?
a. Both parents were homozygous recessive for this trait. b. Both parents carried the recessive trait. c. One parent was homozygous recessive, and the other was homozygous dominant. d. Both parents were homozygous dominant for this trait.
Sketch an exponential growth curve with correctly labeled axes. Identify two organisms and the
conditions under which they might demonstrate such growth. What will be an ideal response?
The energy needed to destabilize existing chemical bonds and start a chemical reaction is called
A. kinetic energy. B. potential energy. C. free energy. D. activation energy.