An action potential could be described as:
A. the unit of information for a nerve cell.
B. a rapid change in membrane potential.
C. a consequence of passive transport across
the plasma membrane.
D. All of the answer options are correct.
D
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Which of the following is an example of hydrogen bonding?
A) The bond between O of one water molecule and H of a separate water molecule B) The bond between O of one water molecule and O of a separate water molecule C) The bond between H of one water molecule and H of a separate water molecule D) The bond between the H of a water molecule and H of a hydrogen molecule E) The bond between O and H in a single molecule of water
In what situation is hemolytic disease of the newborn a life and death situation?
A) when an RH- mom is pregnant for the second time with an RH+ fetus B) when an RH- women and an RH+ male have intercourse C) when an RH+ mom is pregnant for the second time with an RH- fetus D) when an RH- mom is pregnant for the first time with an RH+ fetus E) when an RH+ women and an RH- male have intercourse
Choking involves blockage of the ____
a. larynx b. pharynx c. nasal passage d. bronchiole e. alveoli
Sex-influenced traits are
A. carried on the X chromosome and subject to dosage compensation. B. expressed more in males than in females. C. expressed in relation to hormone levels in males and females. D. expressed only in one sex. E. always expressed traits.