Myelin sheaths cover sections of some neurons. these neurons transmit information at a higher rate than neurons without a myelin sheath. which part of the neuron is most likely covered by a myelin sheath?

Axons

Explanation:

The myelin sheath covers the axons on neurons

Axon

Explanation:

A neuron is he basic unit of the nervous system because it carries electrical impulses. They are made of a cell body, dendrites and an axon.

Myelin is a sheath that works as an insulating layer, formed around nerve cells axons. This sheath is made of proteins and fatty acids and it allows electrical impulses to transmit faster along the nerve cells because it insulates the impulse and increases the rate at which the signal is passed along an axon. So a myelinated axon is like an electrical wire although it does not form a single sheath over the entire length of the axon. Instead, each myelin sheath insulates the axon only in different single sections separated from each other by short gaps called nodes of Ranvier.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.