When the zygote consists of about 100 cells and looks like a hollow ball, it is called a(n)
a. fertilized egg. c. fetus.
b. embryo. d. blastocyst.
d
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You decide to observe the behavior of children in day care. A few days before you are to start data collection you go the center and sit quietly to the side of the room. When the children speak to you, you respond as little as possible. You are
a. attempting to be unobtrusive. b. not going to get good data if you do not interact. c. probably not very good with children. d. trying to warm up the children so that they notice you.
Which hormone is released to produce the growth spurt that occurs during puberty?
a) oxytocin b) prolactin c) vasopressin d) somatotropin
The positive effects of cannabis, such as sedation, mild euphoria, altered perception, pain relief, and distortions of space and time, have been found by recent research to be similar in some respects to that of
a. tranquilizers. b. heroin. c. alcohol. d. cocaine. e. daydreams.
Professor Hinson tells her class that they need to make sure they know that Golgi tendon organs are innervated by
A. Ia sensory fibers. B. alpha motor neurons. C. IIa sensory fibers. D. Ib sensory fibers.