In which part of the digestion of protein begin

Where in the body can you find chemoreceptors? a. on the skin and ears, to detect pressure, touch, motion, and sound b. on the retina, to detect a single photon of light c. on the skin, to detect temperature or specific chemicals d. on the tongue and in the nose, to detect taste or odor

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell