The trophoblast will eventually differentiate to become the
A) fetus.
B) placenta, umbilical cord, amniotic sac, and other structures.
C) embryo.
D) umbilical cord and fetus.
B
Psychology
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Basic bodily functions such as heart rate, blood pressure, and respiration are regulated by which region of the brain?
a. pons b. medulla c. midbrain d. corpus callosum
Psychology
Operant conditioning occurs when a stimulus that resembles the conditioned stimulus elicits the conditioned response
Indicate whether this statement is true or false.
Psychology