How do you not know this it’s so easy
D is preferable.
Explanation:
The behavior response requires communication between cells and an organ system.
Vagina, Cervix, Uterus those are the main ones but there are so many
Efferent neurons are motor nerves
These are motor neurons carrying neural impulses away from the central nervous system and toward muscles to cause movement. Efferent neurons send signals from the brain to the muscles, glands, and organs of the body in response to sensory input
Failure to thrive=infants that do not develop normally, or are unable to eat/drink/sleep/breathe properly.
SIDS=Sudden Infant Death Syndrome
