A chronobiologist expressed concern over the testing of drugs intended for humans on rats and mice. What is the most likely reason for this concern?
a) Such animals are much smaller than humans.
b) These animals are nocturnal and drugs can have different effects depending on when they are given.
c) Most of these animals are routinely sleep deprived, so they serve as models only for humans who are sleep deprived.
d) Biorhythms can affect chemical composition in most animals, yet we do not know much about these biological processes in mice and rats.
B
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Which individual has just experienced menarche?
a. Mona, who has started developing breasts b. Gaspar, who recently experienced his first ejaculation of semen c. Lisa, who recently experienced her first menstrual cycle d. Johnny, whose testicles have enlarged and descended
DSM-IV-TR provides ideas for the treatment of mental disorders.
Answer the following statement true (T) or false (F)
In a resting state, fluid on the inside of the neuron is __________ charged relative to the outside
a. positively c. equally b. negatively d. electrically
A recent study by Dr. Fulani wanted to insure that each participant in the study had an equal
chance of being assigned to the experimental groups or the control group. Which of the following is the best method to assign participants? a. Systematically b. Their choice c. Researcher preference d. Randomly