B.Prism because it’s triangular and a cylinder is circular
Living: biotic
Non-loving: abiotic
Cell wall:
-acts like a skin
- most selectively controls what is inside and outside of the cell
-rigid
Cell membrane:
-gives a plant cell
-not rigid
As the air molecules move through the valve they have friction as they hit the walls, and its this friction that causes it to heat up.
I think the answer is a pure substance
