So if you didn't know that the arteries is the biggest and carries the blood from you heart to your vessels
They assemble amino acids into proteins.
An eye contains receptors called photoreceptors viz rod and cone cells. Cones are cone-shaped structures and are necessary for daylight vision. Unlike cones, rods are rod-like structures and are necessary for dim-light vision. Rods are far more numerous than cone cells.
I believe it is A. By showing how much glucose is produced it will show the rate of photosynthesis!