Keystone

endangered species list play key roles within their habitats and environment that without them they can not run. Some endangered species are keystone species, keystone species are species that are largely depended on in their ecosystem and if they are removed then the ecosystem changes drastically. One…

shaped specifically to break sea turtle shells with sharp, serrated edges. Tiger sharks are also known as “swimming garbage disposals” due to their stereotype of eating anything and everything. However, Tiger Sharks play a very important niche as the keystone in their environment. They are very important to their…

Sea otters spend most their time in the water. Sea otters often float on the surface of the water on their backs. Sea otters eat up to 35% of their weight in fish, crabs, sea urchins, and lobster. Sea otters eat so much that they caused the fish population to decrease significantly. If sea otters were to go extinct then there would be major effects on the ecosystem. Sea otters eat a variety of things, but a big part of their diet is sea urchins. Sea urchins eat plants. If sea otters went extinct…

Tom Bombadil placed the magic ring on his finger; everyone waited for him to disappear, but nothing happened, and he handed the ring back to Frodo without a slight hesitation. Frodo offered Galadriel the ring and she grew into a horrible creature towering over Frodo, but fought the ring’s strong temptation, and finally decreasing back to her normal self and declined the powerful ring. Both Bombadil and Galadriel, in The Lord of the Rings, are examples of powerful, higher-power creatures living a…

“School can bind as effectively as it can liberate; it can enforce conformity and limit life chances as well as foster individual talent” (Colombo, 107). I attended DuBois Area High School, which is a public high school in a middle class town. There was about 1200 students in my school so I knew a lot of people but I would see new faces almost every day. I believe there are good things and bad things about public high schools because they have good and bad programs, they push you to go to…

to human. The giant sea star (P. giganteus) lived among other aquatic organisms in the water. From the previous Animal Investigation, it is known that the giant sea star and its relative purple sea star (Pisaster ochraceus) are keystone species. The definition of keystone species…

many animals due to the variety of animals it attracts and the relationships that occur from the interactions in the ecosystem. One could say that sycamore trees play a unique and crucial role in the way an ecosystem functions; moreover, without keystone species, the ecosystem would be dramatically different or cease to exist altogether. The sycamore provides fruit that allows insects and animals to feed on; however, without the fig wasps, the fruit would never ripen and become the nutritious…

A changing climate is proving a threat to the world. Increased CO2 emissions are leading to rising sea levels, melting ice caps, extreme weather, and an increased rate in the extinction of species. However, the question of why endangered species are important to conserve arises. What is the purpose of devoting the effort to protect a single species when so many more exist? The ignorance argument, as Elliott Sober outlines in his article “Philosophical Problems for Environmentalism,” offers a…

TransCanada’s responses to its environment can be described by two actions: the drafting of the EIS and the Perryman Study and working with the Nebraska government to reroute the pipeline. 2.1 Environmental Impact Study and Perryman Study As to compile with the National Environmental Policy Act and the Department of State for a presidential permit that included a national interest determination, TransCanada had to prepare an EIS, which was a three-year study and examined “project design…

Annotated Bibliography "Dakota Access Pipeline." Congressional Digest, vol. 95, no. 10, Dec. 2016, p. 12. EBSCOhost, ezproxy.scottsdalecc.edu:2443/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=aph&AN=119547116&site=ehost-live. Congressional Digest, a Pro and Con scholarly independent publication, summaries Senator Bernie Sanders (VT-I) attempts to slow the development of the Dakota Access Pipeline; He attempted to slow the progress by adding an amendment to a water project bill…