What would happen if we found a way to get rid of pollen?

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

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

If your blood becomes too concentrated with iona, what will happen to the red blood cells