A myelinated axon has a sheath around it and a bore axon doesn't have it, it's open or exposed so to speak. T<span>he myelin is made up of fat and protein and works like insulation. these axons make up the white matter in the brain since it appears white. The sheath helps to keep the electrical current from leaving the axon and the myelin sheath provides a tract along which regrowth can occur. </span>
<span>An element is a pure substance that cannot be broken down into anything simpler by physical or chemical means.</span>
Answer b
I think I’m not sure
Explanation:
Not really sure but I think is that rodents mate randomly but wait for someone else to answer cause I’m not 100% sure
