Question 1 11. When the wolves were eliminated from the Yellowstone ecosystem, how was the population of plants indirectly affected?(1 point) Responses The plants were not affected by the absence of the wolves in Yellowstone. The plants were not affected by the absence of the wolves in Yellowstone. The plants, which were food for the wolves, did not have the elk maintaining their population size, so overgrazing did not occurred. The plants, which were food for the wolves, did not have the elk maintaining their population size, so overgrazing did not occurred. The elk and deer moved around more and grazed less vegetation because plants were harder to find. The elk and deer moved around more and grazed less vegetation because plants were harder to find. The elk, which were prey for the wolves, did not have a predator maintaining their population size, so overgrazing of plants occurred. The elk, which were prey for the wolves, did not have a predator maintaining their population size, so overgrazing of plants occurred. Question 2 12. Drag each answer choice to the blank that completes the paragraph correctly. You may use some responses more than one time.(3 points) Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. Wolves are considered Response area because they are a species that other plants and animals within an ecosystem largely depend on. They are also Response area predators (predators at the top of the food chain) and greatly influence their environment. The Response area of wolves from the ecosystem would drastically change and possibly collapse the ecosystem because no other species is able to fill the wolves' ecological niche. When the last remaining wolf pups in Yellowstone were killed in 1924, it started a top-down process called a Response area, which is an ecological process that starts at the top of the food chain and affects other organisms all the way down the food change. This is a change that results from the the removal of an ecosystem's Response area predators or Response area. Question 3 13. Taking what you learned about the wolves in Yellowstone, if all wolves were suddenly removed from the imaginary island mentioned in #2-#10, what would happen to the deer population? (1 point) Responses The deer population would probably stay the same because predators are not important and have no affect on the other biotic and abiotic factors in an ecosystem. The deer population would probably stay the same because predators are not important and have no affect on the other biotic and abiotic factors in an ecosystem. The deer population would probably shrink like it did from 2012 to 2016 because predators are not important and trophic cascades do not exist. The deer population would probably shrink like it did from 2012 to 2016 because predators are not important and trophic cascades do not exist. The deer population would probably grow like it did prior to 2010 until starvation and disease began to limit the population similar to how the deer affected Yellowstone before the wolves were reintroduced. The deer population would probably grow like it did prior to 2010 until starvation and disease began to limit the population similar to how the deer affected Yellowstone before the wolves were reintroduced. Skip to navigation

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Question 1 11. When the wolves were eliminated from the Yellowstone ecosystem, how was the population of plants indirectly affected?(1 point) Responses The plants were not affected by the absence of the wolves in Yellowstone. The plants were not affected by the absence of the wolves in Yellowstone. The plants, which were food for the wolves, did not have the elk maintaining their population size, so overgrazing did not occurred. The plants, which were food for the wolves, did not have the elk maintaining their population size, so overgrazing did not occurred. The elk and deer moved around more and grazed less vegetation because plants were harder to find. The elk and deer moved around more and grazed less vegetation because plants were harder to find. The elk, which were prey for the wolves, did not have a predator maintaining their population size, so overgrazing of plants occurred. The elk, which were prey for the wolves, did not have a predator maintaining their population size, so overgrazing of plants occurred. Question 2 12. Drag each answer choice to the blank that completes the paragraph correctly. You may use some responses more than one time.(3 points) Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. Wolves are considered Response area because they are a species that other plants and animals within an ecosystem largely depend on. They are also Response area predators (predators at the top of the food chain) and greatly influence their environment. The Response area of wolves from the ecosystem would drastically change and possibly collapse the ecosystem because no other species is able to fill the wolves' ecological niche. When the last remaining wolf pups in Yellowstone were killed in 1924, it started a top-down process called a Response area, which is an ecological process that starts at the top of the food chain and affects other organisms all the way down the food change. This is a change that results from the the removal of an ecosystem's Response area predators or Response area. Question 3 13. Taking what you learned about the wolves in Yellowstone, if all wolves were suddenly removed from the imaginary island mentioned in #2-#10, what would happen to the deer population? (1 point) Responses The deer population would probably stay the same because predators are not important and have no affect on the other biotic and abiotic factors in an ecosystem. The deer population would probably stay the same because predators are not important and have no affect on the other biotic and abiotic factors in an ecosystem. The deer population would probably shrink like it did from 2012 to 2016 because predators are not important and trophic cascades do not exist. The deer population would probably shrink like it did from 2012 to 2016 because predators are not important and trophic cascades do not exist. The deer population would probably grow like it did prior to 2010 until starvation and disease began to limit the population similar to how the deer affected Yellowstone before the wolves were reintroduced. The deer population would probably grow like it did prior to 2010 until starvation and disease began to limit the population similar to how the deer affected Yellowstone before the wolves were reintroduced. Skip to navigation

Answer 1

Question 1: The correct response is "The plants, which were food for the wolves, did not have the elk maintaining their population size, so overgrazing did not occur."

Question 2:
- Wolves are considered keystone species because they are a species that other plants and animals within an ecosystem largely depend on.
- They are also apex predators (predators at the top of the food chain) and greatly influence their environment.
- The removal of wolves from the ecosystem would drastically change and possibly collapse the ecosystem because no other species is able to fill the wolves' ecological niche.
- When the last remaining wolf pups in Yellowstone were killed in 1924, it started a top-down process called a trophic cascade, which is an ecological process that starts at the top of the food chain and affects other organisms all the way down the food chain.
- This is a change that results from the removal of an ecosystem's keystone predators or keystone species.

Question 3: The correct response is "The deer population would probably grow like it did prior to 2010 until starvation and disease began to limit the population similar to how the deer affected Yellowstone before the wolves were reintroduced."