Because chewing begins the breakdown of food before it is swallowed, digestion starts in the mouth and throat. which of the following systems aids most in this early stage of digestion?

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

What molecules does hemoglobin decay into over time

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.