The pns is divided into several subsystems. what two subsystems form the first major division of the pns?

sensory and motor

somatic and autonomic

parasympathetic and sympathetic

cns and brain

The correct answer is -

parasympathetic and sympathetic.

Explanation:

PNS (peripheral nervous system) is one of the two branches of nervous system (the second being CNS that includes brain and spinal cord) that connects the CNS (central nervous system) to rest of the body parts (like different organs of body).

PNS is further divided into two branches-

1) Parasympathetic nervous system (controls the body at rest and homeostasis of body, called "rest and digest" function).

2) Sympathetic nervous system (controls the response of body to situations of threat and produces e "fight or flight" response).

that scientist would be robert hooke

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.