From which part of the alimentary canal!
is this cross section taken​

I believe this is a traverse cross section of the gut.

Explanation:

fI cant tell for sure given it is not labeled with the submucosa or ILM but the shape and characteristics portray that. If this is not correct then respond with a comment as it could be a section. I have included a photo for refrence for this section

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.