What structure of protein is the amino acid sequence

a. primary

b. secondary

c. tertiary

d. quaternary

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

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

Witch theory suggests all living things are made up of cell or cells