Answer: Homeostasis
Explanation: One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
Answer:
Pluto
Explanation:
Pluto because some people consider it a planet, but some consider it a dwarf planet because it has not cleared the neighborhood around its orbit.
When a physical ailment has no apparent medical cause, doctors may suspect a somatoform disorder. Essentially a mental disorder
