Which type of apnea occurs because the brain stops sending signals to the diaphragm to maintain breathing?
a. aphasic
b. restrictive
c. central
d. obstructive
ANSWER: c
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The following twin pair would physically resemble each other the most
a. dizygotic of either sex. b. monozygotic. c. dizygotic males. d. monozygotic, but only if female.
If you do not feel the chair you are now sitting in, it is because:
A. constant rubbing numbs nerve endings B. when there is constant stimulation, our senses experience a decrease in responding C. sitting tends to constrict blood flow and partially numbs our skin senses D. the temperature on the surface of the skin goes up and makes us less sensitive
Which hormone is the primary determinant of whether a baby will develop male or female external genitalia?
a. Progesterone b. Human chorionic gonadotropin c. Androgen d. Testosterone
Which of the following methods allows researchers to compare participants who cannot be randomly assigned to conditions?
A. Correlational B. Quasi-experimental C. Naturalistic observation D. Experimental