The neuroendocrine system consists of which of the following?
a. nerve impulses and hormones b. circulation and neurons c. neurons and nerve impulses d. hormones and circulation

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.