Please help :/

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina

The cluster of developing cells from conception until birth is called an