The best answer that is being described above is the RODS. Along with cones, Rods are one of the photo<span>receptor cells in the retina of the </span>eye. Unlike the cones that help with color vision, the rods focuses more on the gray scale, the reason why we can see everything in a gray scale at night or in a dark environment. Hope this helps.
Red blood cells exchange carbon dioxide for oxygen
Answer:
protein
Explanation:
a specific protein tht functions in one or more types of cells in the body.
One reason is if someone is injured and needed to use pain pills, sometimes they get addicted to it
