The thermosphere contains a layer of charged particles

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

Explain how scientists use geologic time to determine the age of landforms.

What is the next step in muscle contraction after the actin changes shape