Axons may be up to a quarter of a mile long. carry messages away from a cell body. are primarily responsible for the hypothalamic functions of regulation and motivation of sexual functions. are contained within the cell nucleus.

Carry message from a cell body

Explanation:

Axon is a long , slender projection of a nerve cell or neuron that carry nerve impulses away from the cell body .

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

i think it is the third one.