Levels of Organization Notes

Levels of Organization

Reorder

What are the levels of organization? (From Simplest to most complex)

• Cells

• Tissues

• Organs

• Organ Systems

• Organisms

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Cell

• The basic, & smallest unit of all forms of life.

Cell

• The basic, & smallest unit of all forms of life.

​– Ex. A neuron – the cells your nerves are made of.

Multiple Choice

What Level comes after Cell?

• Tissue

• Organ

• Organ System

• Organism

Tissue

• A group of similar cells that perform a particular function.

Tissue

• A group of similar cells that perform a particular function.

• ​Ex. The nervous tissues & connective tissues in muscles.

Multiple Choice

What Level comes after Tissue?

• Cell

• Organ

• Organ System

• Organism

Organ

• A group of tissues grouped together to perform a function.

Open Ended

List as many organs as you can think of in the Human Body!

Organ

• A group of tissues grouped together to perform a function.

• ​Ex. Your heart!

Multiple Choice

What Level comes after Organ?

• Cell

• Tissue

• Organ System

• Organism

Organ System

• A group of organs that work together to perform closely related functions.

Multiple Choice

Which one of these is NOT an Organ System for the human body?

• Respiratory System

• Root System

• Integumentary System

• Nervous System

Organ System

• A group of organs that work together to perform closely related functions.

• ​Ex. The stomach, small intestines, & large intestines work together as the digestive system to break down food & take in nutrients.

Multiple Choice

What Level comes after Organ System?

• Cell

• Tissue

• Organ

• Organism

Organism

• Living Thing

• ​Ex. YOU! (Humans)