Which structure of a diatom is rich in silicon?
a. flagellum
b. nucleus
c. cell wall
d. eyespot

biology is the study of life. it is the study of living organism.

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.