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Illustrating Species Importance
Answer the following series of questions related to Biodiversity that specifically look at a Trophic Cascade and Keystone Species.
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1. Keystone Species
Watch the Video "How Wolves Change Rivers" by Sustainable human (
https://www.youtube.com/watch?v=ysa5OBhXz-Q
) and answer the following series of questions.
a. Based on the movie come up with a general definition for a Keystone Species
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b. Explain how the wolf is used as an example of a Keystone species and how its reintroduction to Yellowstone had effects as such.
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2. Trophic Cascade
Watch the videos "How Whales Change Climate" by Sustainable Human (
https://www.youtube.com/watch?v=M18HxXve3CM
) and "US Mexico Border wall" by NatGeo (
https://video.nationalgeographic.com/video/magazine/focal-point/0000015e-10ab-db02-a9df-1ebf636a0000?awc=19533_1603292548_c6cb6326f7ea7a965f43c25dd7fb0ab7
) and answer the following series of questions.
a. Based on the movie come up with a general definition for a trophic cascade.
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b. Explain how whales can create a natural trophic cascade using the example from "How Whales Change Climate"
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c. Explain how humans can create a trophic cascade using the example from "US-Mexico Border Wall"
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