
Chloroplast diagram
Chloroplast diagram showing a simplified inside view of a chloroplast

DNA showing unravelling strands
DNA showing unravelling strands. Pen and ink diagram.

Animal cell
Animal cell which is dissected to show key organelles and the nucleus. Pen and ink diagram. Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books)

Micro organism group
Micro organism group amoeba euglena paramecium cut to white