1. Quiz 1- What effect did DDT have on bird populations?
2- How did this happen?
3- How does energy change as you move up an energy pyramid? (from trophic level to trophic level)
4- What is succession? How does a pioneer species relate to succession?

2. Candy wrappers on the floor

3. Body sytems Integumentary Circulatory Endocrine Immune Digestive
Muscular
Skeletal
Nervous

4. Integumentary system The skin The largest organ in your body!
Function: _______
Associated organs:

5. Circulatory system Heart, arteries, blood vessels, veins
Function: __________
Associated organs:
What important gas is moved around by the circulatory system?

6. Endocrine system Organ system of glands that release hormones
Function: ________
Associated organs:

7. Immune system
Organs and tissues that produce white blood cells or antibodies
Function: ______
Associated organs:

8. Digestive system Organs break down food into small molecules
Function: ________
Associated organs:

9. Muscular system Muscles in the body Function: Associated organs:
Three types!
Function:
Associated organs:

10. Skeletal system
All your bones!
Function:
Associated organs:

11. Nervous system
Function:
Associated organs: