A phenotype refers to
a) different habitual levels of arousal.
b) inherited anatomical structures.
c) an individual's observable appearance.
d) one's underlying genetic makeup.
Ans: c) an individual's observable appearance.
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Morris, age 4, is having lunch with his mother and sister. When his mother pours the milk that is left in the carton into the children's glasses, she finds that there is not enough to fill both glasses, so she carefully pours half of the milk in the shorter, fatter glass in front of Morris and half into a slender, taller glass in front of Morris's sister. Immediately, Morris complains that his sister got more milk than he did, and even when his mother tries to explain that they both got the same amount, Morris insists he is right. In this example, Morris is demonstrating a lack of development in the area of __________.
A. egocentrism B. conservation C. concrete operational thought D. post-abstract thought
Some people experience ____________________, which are persistent, uncontrollable thoughts
Fill in the blank(s) with correct word
Dr. Manquero forms the hypothesis that ingesting chocolate prior to an exam will improve exam performance. She gives half of her participants chocolate and the other half gum. She then gives the participants an exam. In this experiment, what is the best way to divide the participants into groups?
a. Make sure that each group wants to eat the chocolate or chew the gum. b. How the groups are formed doesn't matter. c. Have all males in one group and all females in the other. d. Use random assignment.
Low-birth-weight newborns are usually placed into a warmed crib because
A. warmth will reduce jaundice. B. warmth activates the sucking reflex. C. they have insufficient fat deposits to keep themselves warm. D. warmth reduces the activity of the immune system.