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.
The stimuli plants respond to will be found in the environment. Example....plants grow towars the sun.
pressure would be described as the force that is on an object
Answer:
B.secrete hormones directly into the bloodstream
