The basic units of sound in a given language are called
a. phonemes.
b. pragmatics.
c. semantics.
d. morphemes.
a
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Which statement correctly summarizes internal bodily changes due to aging?
A. The heart's capacity to pump blood through the circulatory system to the brain is increased due to the shrinking of blood vessels. B. The reduction in gray matter makes the aging brain less efficient. C. The respiratory system is more efficient with age. D. The digestive system is less efficient in pushing food through the system, which often leads to constipation.
Seven students reported the following individual earnings from their sale of wrapping paper: $7, $13, $3, $5, $2, $9, and $3 . In this distribution of individual earnings, the mean is _____
a. 7 b. 3 c. 6 d. none of the above
The neurotransmitter implicated in regulatory problems, such as eating and sleep disorders, is ____
a. norepinephrine b. serotonin c. benzodiazepine-GABA d. dopamine
Enzymes involved in the formation of the catecholamins all Except:
A. dopamine beta hydroxylas B. dopa decarboxylase C. monoamine oxidase D. tyrosine hydroxylase E. phenylalanine hydroxylase