Cell division occurs in which layer of the skin milady

Mitosis and cytokinesis. In eukaryotes the processes of DNA replication and cell division occur at different times of the cell division cycle. During cell division, DNA condenses to form short, tightly coiled, rodlike chromosomes. Each chromosome then splits longitudinally, forming two identical chromatids.

C. gemstones they are the only non metallic mineral from the list.