Are neuron fibers that conduct impulses fbers that conduct impuses away from the cell body,
a. axons
b. dendrites
c. myelin
d. astrocytes

A. axons  

Explanation:

The axon is a part of the neuron that is responsible for conducting electrical impulses from the cell body to another, more distant location, such as a muscle or another neuron. The axons are coated with sphingolipids.

Each neuron has a single axon, which is born from the implantation cone, still located in the pericary region of the neuron; the axons do not branch off abundantly, and when they do they give rise to the so-called collaterals.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

the contamination

we are putting to many trash.