Warm-Up Which organism is both a secondary and tertiary consumer? Where does the energy that drives this ecosystem come from?

Endangered Species Organisms threatened with extinction Once extinct, the species is gone forever!! Caused by hunting, disease, pollution, habitat destruction

Endangered Species EX: Ivory-billed woodpecker

Ten Animals that May Go Extinct Video

Biomagnification

Biomagnification Food web magnification Steady increase in the concentration of harmful substances as the trophic level increases. Lower trophic levels have smaller concentrations of contaminants than higher levels.

Toxic Chemicals

Biomagnification of DDT Video