If Vonnie's body needed to dilate her blood vessels, it would release _____.
A. glutamate
B. nitric oxide
C. GABA
D. glycine
Answer: B
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Antonio, who has recently been widowed, is experiencing a greater number of sicknesses in association with the stress of losing his spouse. This is most likely due to ____
a. ?a secondary reaction b. ?neurological rebound c. ?immunosuppression d. ?flight or fight
All of the following are common reasons that young adults in the United States do not practice safer sex behaviors, EXCEPT
A) perceiving the risk of infection to be low. B) having negative attitudes toward condom use. C) believing oneself to be invulnerable to infections. D) not having knowledge about the transmission of STIs.
Vygotsky's sociocultural theory suggests that:
A) a child's interactions with adults organize the child's learning experiences. B) children learn only through a complex interaction of rewards and punishments. C) children are like miniature adults and need to be rigidly instructed to obtain cognitive skills. D) a child's development is unaffected by ethnicity and gender.
Dizygotic twins can be described as ______.
A. being the same as identical twins B. sharing about one half of their genes C. being more similar to each other than ordinary siblings D. occurring less frequently than monozygotic twins