Which of the following macromolecules are broken down by pepsin?
A. proteins
B. carbohydrates
C. lipids
D. nucleic acids
E. All of these answer options are correct.
A
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Which of the following is not true concerning a population in equilibrium according to the Hardy-Weinberg rule?
A. There is no migration into or out of the population B. Individuals of the population mate randomly C. The population size is very large D. Selection is favoring the dominant allele E. There is no mutation in the populations
The term “hyperpolarization” refers to
a. movement of the resting membrane potential closer to threshold. b. movement of the resting membrane potential farther from the threshold c. an excitatory postsynaptic potential. d. the opening of sodium channels.
Which of the following will eventually
produce a female gametophyte?
a. megaspore b. microsporangium c. microspore d. megasporangium e. female gametes
The resting potential across a typical neuron membrane is approximately ____ inside relative to outside
a. -70 microvolts b. -70 millivolts c. -70 volts d. +70 millivolts e. +70 megavolts