________ increase the likelihood that a receiving neuron will fire.
A. Synaptic clefts
B. Inhibitory neurotransmitters
C. Excitatory neurotransmitters
D. Refractory periods
Answer: C
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At about age ____, most boys reach spermarche, which is the first spontaneous ejaculation of sperm-laden fluid
a. 9 b. 11 c. 13 d. 15
Identify the correct developmental sequence of Piaget's stages of moral development, from earliest to last
a. Premoral :: heteronomous :: autonomous b. Heteronomous :: premoral :: autonomous c. Premoral :: autonomous :: heteronomous d. Autonomous :: premoral :: heteronomous
________ genes are genes that code for the production of proteins that govern the physiological functions of a cell
a. Recessive c. Dominant b. Structural d. Regulator
The presence of an interaction between the gender and the age of the participants in a study indicates that
A. the results of the study are accurately interpreted. B. the results for males cannot be generalized to females. C. there is no relationship between age and gender. D. age is a more important variable than gender.