The placenta is
a. the tube through which a developing baby receives nourishment
b. the technical name for the "belly button"
c. a specialized organ that provides nourishment and filters away waste products from the developing baby
d. the name for the developing organism until it is 8 weeks old
e. the name for the fluid that surrounds and protects the developing fetus
c. a specialized organ that provides nourishment and filters away waste products from the developing baby
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Kayla's core body temperature has risen 1.5 degrees in the last half hour. This change in body temperature means that it is most likely that Kayla
a. has just fallen asleep. b. will fall asleep in the next 60 minutes. c. has just woken up. d. has been meditating for the past 30 minutes.
Psychologists who theorize the existence of stimulus motives disagree with
a. achievement theory. c. all motivation theories. b. cognitive dissonance theory. d. drive reduction theory.
____________________ theory suggests that parents in stepfamilies are less likely to support their stepchildren because they want their own genes to flourish and have little stake in those not genetically related to themselves
Fill in the blank(s) with correct word
A researcher investigating the effect of peer tutoring on reading skills studies two groups of children in remedial reading classes. One group receives peer tutoring three times a week for three months, the other group does not
At the end of the three months, the two groups are tested in reading skills. What is the independent variable in this experiment? a. peer tutoring versus no tutoring b. reading skills level at the beginning of the experiment c. reading skills level at the end of the experiment d. reading skills test itself