What does the 23rd pair of human chromosomes specify?
A. physical strength
B. biological sex
C. intelligence
D. personality
Answer: B
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What is the leading cause of death in the United States, taking more than 100,000 additional lives compared to the second leading cause?
a. cancer b. stroke c. homicide d. heart disease
In a variable-ratio schedule, the reinforcer is given
a. after a fixed number of nonreinforced responses. b. after a variable number of nonreinforced responses. c. for the first response that occurs after a fixed amount of time has elapsed. d. for the first response that occurs after a variable amount of time has elapsed.
Are also called neural impulses
a. Enzymes b. Refractory periods c. Action potentials d. Resting potentials e. Neuromodulators
How would a typical four-year-old most likely describe his sister?
a. "She is kind of is moody.". b. "She eats corn flakes.". c. "She is a good friend.". d. "Everyone says she's smart.".