Biological Hierarchies

Can you name all biological hierarchies?

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Last updated: January 15, 2026

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Hint	Answer
Collection of Cells	Tissue
Everything on Earth	Biosphere
Single living thing	Organism
An area with Biotic and abiotic things	Ecosystem
Collection of organelles	Cell
All of a species	Population
Multiple tissues working together	Organ
Individual Elements	Atom
Group of Organs working together	Organ System
All living things in an area	Community
Collection of Molecules	Organelle
Multiple Atoms	Molecule