All the following apply to endotoxins except
a. they are composed exclusively of protein.
b. they are part of the bacterial cell wall.
c. they are present in gram-negative bacteria.
d. they often damage the circulatory system.
e. they are released upon disintegration of the parasite.

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.