Scribd
Upload
98 views11 pages

Levels of Organization

This document outlines the levels of biological organization from smallest to largest: atoms make up molecules, cells are made of molecules, tissues are groups of cells, organs are made of tissues, organ systems consist of multiple organs, organisms are single living things, populations are groups of the same species, communities contain interacting populations, and ecosystems are communities interacting with their environment.

Uploaded by

Annirose Barrera Capon
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
98 views11 pages

Levels of Organization

This document outlines the levels of biological organization from smallest to largest: atoms make up molecules, cells are made of molecules, tissues are groups of cells, organs are made of tissues, organ systems consist of multiple organs, organisms are single living things, populations are groups of the same species, communities contain interacting populations, and ecosystems are communities interacting with their environment.

Uploaded by

Annirose Barrera Capon
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 11

Levels of Organization

Atom
Molecule
Cell
Tissue
Organ
Organ System
Organism
Population
Community
Ecosystem
Atom

●Basic building
block of all
matter.
Molecule

●Group of
atoms held
together by
covalent
bonds; has no
overall charge.
Cell

●Basic unit of all


organisms; all
living things
are composed
of cells.
Tissue

●Groups of cells
that work
together to
perform a
specific
function.
Organ

●Group of
tissues
organized to
perform
complex
activities within
an organism.
Organ System

●Multiple
organs that
work together
to perform a
specific life
function.
Organism

●Anything that
possesses all
the
characteristics
of life.
Population

●Group of
organisms of
one species
that interbreed
and live in the
same place at
the same time.
Community

●Collection of
several
interacting
populations
that inhabit a
common
environment.
Ecosystem

●Interactions
among
populations in a
community
(biotic factors)
and the
community’s
physical

You might also like