Coating the neural fibers with an insulating fatty sheath during the process of improves the efficiency of message transfer. select one: a. myelination b. neuroimaging c. synaptic pruning d. neurotransmission

a. myelination

Explanation:

Myelination is the process by which the fatty coating that is called as the myelin is coated around the axon of each neuron. This process protects the neuron and it also helps in transferring signals from one neuron to another more quickly and efficiently.

This process begins in the cerebellum and brain stem before the birth but the process remain uncompleted until late adolescence.  

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%