Potential energy
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
Answer:
air
Explanation: without air you can cant even live
The rough ER is involved with protein synthesis. It helps to produce proteins and help them fold properly.
Answer:
<h2> I don't know but my Answer is </h2><h3>from different environments ,each structure suits their environment better than the other's</h3>
