How does negative feedback act to maintain homeostasis in living things?

Which best explains how this maneuver unblock a person's airway?

Explain how organisms could be harmed by high levels of salt from roadways?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.