92
48
13
11
Mitochondria
Nucleus
Smooth Reticulum
Chloroplast
Cellular parts
Organelles
Organs
Celluoplasts
20
200
400
1000
Golgi Apparatus
Endoplasmic Reticulum
Population
Community
Biosphere
Ecosystem
Aristotle
Captain Hooke
Robert Hooke
James Watson
Proteins
Quarks
Cells
Cell death
Cellular respiration
Cell division
Cellular communication