When two ova are released and both are fertilized by a sperm, what type of twins result?
a. Fraternal twins
b. Identical twins
c. Either fraternal or identical twins
d. Neither, only one egg at a time can be fertilized and twins result if that egg splits in two.
a
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While Pavlov was exploring conditioning in Russia, an American named ____ also discovered the existence of conditioned reflexes.?
a. ?Walter Pillsbury b. ?John Watson c. ?Edward Thorndike d. ?Edwin Burket Twitmyer e. ?Willard Small
Having a skills-development attitude means:
a. you will not make mistakes in your self-change project. b. mistakes are a sign that you need more practice. c. you should change your plan. d. you need a mediator.
As she's gotten older, Margaret notices that she needs to fill her salt and pepper shakers much more frequently.
Answer the following statement true (T) or false (F)
The ________ is referred to as the "new brain."
A. limbic system B. cerebral cortex C. hindbrain D. central core