Biological Hierarchy: Cells to Organisms

Front

Basic unit of life

Back

Cell

Front

Group of similar cells

Back

Tissue

Front

Function of tissues

Back

Perform specific tasks

Front

Collection of tissues

Back

Organ

Front

Function of organs

Back

Carry out complex functions

Front

Group of organs

Back

Organ system

Front

Function of organ systems

Back

Maintain homeostasis

Front

Complete living entity

Back

Organism

Front

Example of organ system

Back

Digestive system

Front

Example of organism

Back

Human