An ulcer, or painful tear in your stomach lining, provides stimulus for your: nociceptors.
thermoreceptors.
mechanoreceptors.
photoreceptors.

How are the cell walls of a plant and fungus different ?

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Buuy which of the following did you include in your response? organs perform specific functions in the body to keep it alive. organelles perform specific functions in cells to keep them alive. done