Which of the following conclusions might be drawn from the textbook’s discussion of feeding disorders?
a. Rumination disorder is an evolutionary ancient behavior left over from when food was more fibrous and more chewing was required.
b. Pica is seen most often in adult males in stressful situations.
c. Food texture problems can be an early sign of autism.
d. Food preferences based on taste and texture are normal, especially in childhood.
Ans: D
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Approximately what percent of the mammalian body is composed of water?
a. 10% b. 20% c. 50% d. 70%
At what point do the sodium gates begin to close, shutting out further entry of sodium into the cell?
a. at the peak of the action potential b. when the threshold is reached c. at the end of the relative refractory period d. when the concentration gradient for sodium is eliminated
Children who are working quietly on their homework when the hourly bell rings will be allowed to go to the play area for 10 minutes. Just before the bell is about to ring, the children become so quiet that you could hear "a pin drop" in the classroom. These children's quiet behavior occurred right before the bell because they are on which schedule of reinforcement?
a. continuous b. fixed ratio c. variable interval d. fixed interval
Which is an example of compliance?
A. stopping when asked to by a police officer B. listening to music your friends would like C. handing over the tv remote when your roommate asks for it D. a presidential candidate wearing a red tie