1. Monday’s Writing Topic
Energy Transfer and Biomagnification

2. Monday’s Writing Topic Discussion
What is the ultimate source of all energy?
Which trophic level contains the most energy?
How much energy is transferred from one trophic level to the next?

3. Monday’s Writing Topic Discussion
What happens to the concentration of toxins as you move up the pyramid or food chain?
Toxin Examples
Dichloro-diphenyltrichloroethane (DDT)
Polychlorinated biphenyls (PCBs)
Mercury

4. Monday’s Writing Topic – Due 1/16
Compare and contrast energy transfer and biomagnification as you move from producers to tertiary consumers by answering the following questions. You should write your answers in paragraph form.
What is the ultimate source of all energy?
How much energy is transferred to each trophic level?
What happens to the energy that is not transferred?
What is biomagnification? (use your own words)
List two toxic substances that are involved in biomagnification.
Teritiary consumers would have the ________ amount of energy, but the ________ amount of toxins.
Producers would have the ________ amount of energy, but the ________ amount of toxins