Tutor profile: Victoria M.
Subject: Natural Sciences
Consider a ecosystem consisting of white sharks, seals, and herring. What role do white sharks play in this ecosystem?
Here, white sharks are considered apex predators and control the health of the ecosystem. white sharks prey on the seals, and the seals prey on the herring. If these seals did not experience predation pressures from the white sharks, their numbers would increase without any boundaries. As a result, the herring population would drastically decrease due to the huge seal population. Therefore, the white sharks keep the system in balance.
How do I write a good thesis statement?
Think of your thesis statement as the main idea of your paper. If someone were to only read your paper's thesis statement, without reading the rest of your paper, they should be able to tell exactly what the point of your paper is and how you will be supporting that point. Sometimes, a thesis statement can be as simple as answering your assignment's prompt in one or two sentences. Other times, it requires a lot more planning and drafting. All in all, your thesis statement is the heart of your paper.
What is the difference between biomagnification and bioaccumulation in the marine food web as it refers to marine contaminants?
Biomagnification refers to contaminant levels increasing across a food web from the consumption of contaminated prey by predators. Bioaccumulation is when contaminants accumulate in marine species over time as they age.
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