Levels of Organizatio

n

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. Cell2. Tissue3. Organ4. System5. 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

Connective Tissue

Nerve Tissue

Epithelial 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