Based on what you know, what you have read, and the data you have been giver - do you think there is evidence that a trophic cascade occurred in Yellowstone
park? Explain using CER. Be specific as to years, etc. Also include people's role, both
positive and negative.

Vocabulary terms to be used in your
Food chain
Producer (autotroph)
Consumer (heterotroph)
Primary consumer
Secondary consumer
Herbivore
Carnivore