Which one of these is NOT an example of intercellular communication? A. Electrical signals pass between heart cells

B. Chemical messengers doc on two receptors of adrenal gland

C. A vessel and encloses over a nutrient molecule

D. Chemical signals from pituitary gland to adrenal gland

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.