Levels of Organization: Notes

Atoms

Smallest unit of matter

Simple Molecules

different atoms bonded together

Macromolecules

Large molecules formed by polymerization (small molecules link to form a very large, long chain molecule)

Cell

smallest unit capable of carrying out life

Tissue

Group of cells (Not always same kind) working together to do a specific task

Organ

Group of different tissues that perform a similar or singular function

Organ System

group of different tissues that perform a similar overall function

Organism

A single living individual

Population

Group of the same species living in a particular area

Community

Populations of different species living interactacting in an area

Ecosystem

Includes biotic organisms the abiotic factors in an area.

Biome

Large geographic region with similar abiotic factors and organism

Biosphere

Regions of planet where life exists

Subcellular Structures

structure for specific function within the cell.