Body Systems

All living things…………….

Made of cells

Need energy

Respond to the environment

Reproduce

Grow and develop

Organisms

Organisms = any living things

Unicellular Multicellular

Cells can be organized

Human Body (1)

Systems (11)

Organs

Tissues

Cells (100 trillion).

What is a………

Cell: basic unit of life

Tissue: group of cells that work together

Organ: group of tissues that work together

What is a system?

A group of cells, tissues and organs that work together both physically and chemically to carry out a task.

Your Job- Make a poster

Become an expert on one system

Level 1-3:

answer the following questions and draw a picture of the system

What is the name of the system and main job?

What are the main organs of the system?

What are the jobs of the organs?

Immune System - Example

Main job: defense against disease

Organs:

Skin: forms barrier between inner and outer environment

Thymus: white blood cells develop

Bone marrow: produce defense cells

Level 4

List 3 diseases that can be associated with the system.

Type 1 diabetes

Lupus

AIDS