The Living World 8th Edition by George Johnson

Exercise 20

Living things are organized. Choose the answer that illustrates this organization and that is arranged from smallest to largest.
A) cell, atom, molecule, tissue, organelle, organ, organ system, organism, population, species, community, ecosystem
B) atom, molecule, organelle, cell, tissue, organ, organ system, organism, population, species, community, ecosystem
C) atom, molecule, organelle, cell, tissue, organ, organ system, organism, community, population, species, ecosystem
D) atom, molecule, cell wall, cell, organ, organelle, organism, species, population, community, ecosystem