Plants, bison, elk, and wolves are all members of an ecosystem. The bison and elk are both primary consumers in this ecosystem, while the wolves are a predator. Over time, the bison completely disappear. Give an example of how the ecosystem may respond to this change, and explain how this relates to both resiliency and biodiversity. (4 points) write these answer in 4 sentences and like an 8th grader wrote it

Without bison, the elk population might get too big because they don't have to worry about sharing food with bison anymore. This could lead to overgrazing and less food for other animals in the ecosystem. The ecosystem might become less resilient because it depends so much on the elk now. Biodiversity could also decrease because there is now one less type of animal in the ecosystem.

Beavers, large members of the rodent family in North America, are often referred to as "ecosystem/keystone engineers" by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways. Given this information, in 3 sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers, and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem. write the answer like an 8th grader wrote it

Beavers help the ecosystem by making dams that create new habitats for other animals. If beavers were removed, there wouldn't be any dams to slow down the water flow in the river. This could cause the river to flood more often and change the whole environment around it.

Some students are trying to convince their parents to let them raise backyard chickens. They want to present a logical argument on how raising your own chickens reduces food waste. In three sentences, construct an argument for how raising livestock yourself can help you reduce, reuse, and recycle waste. Write the answer like an 8th grader wrote it

(4 points)

If you raise your own chickens, you can give them your food scraps instead of throwing them away. The chickens will eat the scraps and turn them into eggs or manure for your garden. This helps reduce the amount of food waste going into the trash, and you get fresh eggs and natural fertilizer for your plants too!