What is the part of the eye controls how much light the pupil lets in

The germs that cause infections are mainly spread in what three ways? a. immunization, mucous membranes, not washing hands b. germ-laden droplets, direct contact with body fluids, insects c. hand hygiene, sickness, immunization d. not enough sleep, low oral hygiene, germs

What condition is most likely present when a normal p wave is negatively deflected?

How can the stress response be used in a way. for example to build resilience.