Answer:
solid, naturally occurring, inorganic, fixed composition, crystal form.
Explanation:
I would say the cytoskeleton is most like Scaffolding.
I know number 2 off the top of my head:
1. Cells are the most basic unit of life.
2. All living things are composed of cells.
3. Cells come from other cells.
MRNA transfers genetic information in the nucleus from the DNA to the cytoplasm because DNA never leaves the nucleus