Parent rocks.
( I got it wrong when I put Inorganic materials)
Answer: parallax is the best answer
Answer:
Schleiden had even supposed the nucleus to be a constituent part of the wall, sometimes lying enclosed between two layers of its substance, and Schwann quoted this view with seeming approval. Schwann believed, however, that in the mature cell the nucleus ceased to be functional and disappeared.
The atoms are conserved in both physical and chemical processes during cellular respiration.
Hope that helps
