The answer that you are looking for is A. Nephrons
Answer: I think it's c.cerebellum
this is the correct answer because the cranial nerves connect through the brain stem and provide the brain with the sensory input and motor output associated with the head and neck, including most of the special senses. The major ascending and descending pathways between the spinal cord and brain, specifically the cerebrum, pass through the brain stem.
Between 110 and 160 beats per minute. It can vary by 5 to 25 beats per minute. The fetal heart rate may change as your baby responds to conditions in your uterus.
Excitatory neurotransmitter? This question is too vague.
