What are the two types, when is each usually diagnosed and what are the treatments for each?

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

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

Which event would lead to primary succession of a forest?