1. Do nOw- lab day! 
Ms. P has a lovely vegetable garden, but unfortunately there has been a major insect problem that keeps destroying the crops. 
Ms. P decides to use a pesticide to take care of the problem. Do you think this is a good idea? Explain why or why not.

2. Bioaccumulation vs. Biomagnification
Most pollutants either cannot be broken down by natural processes, or take an extremely long time to be degraded.
This causes pollutants to build up in our ecosystem!
Bioaccumulation: toxins build up in the tissues of an organism at a faster rate than it can be excreted.
Biomagnification: increase in the concentration of toxins as trophic levels increase.

3. 5 40 1 7 4
Draw an ecological pyramid of numbers of different organisms using the information above.
Now try to draw an ecological pyramid displaying the concentrations of toxins at each trophic level

4. Can biomagnification influence biodiversity?

5. Objectives
Examine the concepts of bioaccumulation and biomagnification of a chemical in a food chian
Create a model to demonstrate the concentration amount at each trophic level

6. Meet the players “M” = toxin amount Phytoplankton Osprey Zooplankton
Minnow
Eel