Download The Cell

Levels of
Organization
Living organisms are considered
to be “highly organized”
This means that they are made
up of different components
working together in a specific
way.
We are going to learn how living
organisms are highly organized.
What did both the plant and
animal have in common during
the virtual dissections?
They were both made of smaller
parts working together to form
a whole.
How is a living organism a
system?
A living organism is made up of
smaller parts working together
just like a system.
Put the five cards with the
largest font in order from
smallest to largest.
Levels of Organization
1.
2.
3.
4.
5.
Cell
Tissue
Organ
System
Organism
http://www.yellowtang.org/animations/organization.swf
Cell


The first level of organization
The smallest unit of structure and function
of living things
Tissue


Second level of organization
Groups of similar cells that perform a
specific function



Muscle tissue
Lung tissue
Heart tissue
ground tissue in leaf
Muscle Tissue
Epithelial Tissue
Nerve Tissue
Connective Tissue
Organ


Third level of organization
Group of different tissues working
together to perform a certain task




Heart
Lung
Stomach
Brain
System


Fourth level of organization
A group of organs working
together




Skeletal system
Circulatory system
Muscular system
Nervous system
Organism


Fifth level of organization
Combines cells, tissues, organs, and
systems
Organism needs

All living organisms need certain things to
live





Obtain energy (photosynthesis and
respiration)
Eliminate waste
Respond to stimuli
grow
Reproduce