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Tutor profile: Briana S.

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Briana S.
Environmental and Outdoor Educator
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Questions

Subject: Natural Sciences

TutorMe
Question:

Think about a watershed. Pollution and run-off are carried throughout the lands of the watershed into its river causing eutrophication. Describe one example of the effects this can have on the living organisms in the river. Describe an example of how this can affect the abiotic (non-living) components of the river.

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Briana S.
Answer:

The plants and river grasses that live in the river are indirectly affected by this because eutrophication can cause algal blooms. The algae thrives with the excess nutrients and spreads along the top of the river and blocks out the essential sunlight that the grasses need on the bottom of the river, causing the plants to die and a trophic cascade as the animals that need to eat these plants have nothing to eat and then the animals that eat these animals have nothing to eat. Algae can change chemistry of the river. It can cause the temperature to change.

Subject: Environmental Science

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Question:

Imagine you are working for an environmental organization and you are planning to study the health of some local ponds and streams. What may be some ways you can assess the health of these bodies of water? Offer different ideas that are both complex and easy and accessible to the general public.

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Briana S.
Answer:

You can look at the chemistry of the water. One easy way is to test the pH of the water as pH tests are readily available. You can also test the pollution of the water in the form of nitrates and phosphates of the water but that may be more complex and more difficult. An easy way is a visual assessment, looking for litter and obvious sources of pollution. A more complex way would be to look at gis maps to further understand what is nearby and may be affecting the bodies of water. You can also look at the living organisms in the water. If there are amphibians and biodiverse organisms in the body of water, then that is a good sign.

Subject: Biology

TutorMe
Question:

Think about a temperate forest. Many different organisms are adapted to live in this type of climate. Temperatures can be stable but winters can be sometimes harsh and summers can be scorching. First, define adaptation. Then, name an organism that can live in a temperate forest and provide an example of its adaptations that allows it to thrive in this type of climate.

Inactive
Briana S.
Answer:

An adaptation is a specific trait or behavior that helps the survivability of a specific organism. A black bear lives in a temperate forest and has a few different adaptations that help it. It has fur that can thin out in the hot summers so it doesn't get overheated and can thicken in the cold winter to help keep it warm.

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