Which of the following signifies the onset of adolescence?

a. puberty
b. a deepening voice
c. widening of the hips
d. hormonal fluctuations


Answer: A

Psychology

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A light-sensitive visual pigment called iodopsin is found in the

a. cones. b. rods. c. cornea. d. iris.

Psychology

Of the following options, which best describes what researchers viewed as being culturally deficient?

A. converting to a sect of Christianity B. attending schools alongside middle-class students C. eating foods that are considered to be part of a balanced diet D. a heavy use of slang while speaking with others

Psychology

If a dog jumps up and down onlyafter his master says "sponge," then the word "sponge" is

called a A) reinforcer B) US C) discriminative stimulus D) CR

Psychology

A movement of the resting membrane potential from -70 mV to -90 mV would be termed a(n):

A) Hyperpolarization B) Hypopolarization C) Action potential D) Threshold depolarization

Psychology