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