Mrs. Allen is pregnant. Her baby's major organs have begun to form, as have its facial features. The baby is in the _______ stage of prenatal development
a) zygotic
b) fetal
c) embryonic
d) neonatal
ANS: C, During the embryonic period major organs and structures first develop.
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Various species emit chemical substances called that play important roles in many behaviors
a. olfactory hormones b. pheromones c. neurotransmitters d. natural fragrances e. olfactions
Studies in which patients underwent cognitive behavioral therapy for phobias produced improvements in their behaviors and also changed the patients' brain activity
Indicate whether the statement is true or false
The more time caregivers and infants spend in joint play with objects, the __________
A) slower babies’ vocabulary growth B) earlier babies use preverbal gestures C) later babies say their first word D) more often caregivers speak for infants
Which of the following items is an example of an item that includes negative wording?
A. I have trouble sleeping at night. B. My thoughts keep me awake at night. C. I am often not interested in sleeping. D. I sleep better when I am on vacation.