Which of these is a prokaryote?
a. fungi
b. protist
c. plant
d. bacteria

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

How water is moving through the ecosystem ?

Which structure in the cardiovascular system connect arteries to veins?