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# Tutor profile: Avery W.

Avery W.
Quantitative Biology major at UNC Chapel Hill with a passion for teaching

## Questions

### Subject:Chemistry

TutorMe
Question:

What is the key to understanding chemical bonding patterns?

Avery W.

The key to understanding chemical bonding patterns is to understand the trends of the periodic table and how the position of a chemical on the periodic table provides information about its properties. For example, because sodium (Na) is an alkali metal on the far left on the periodic table, it has a charge of +1. Therefore, it is likely to bond with chloride (Cl), a halogen on the far right of the periodic tables with a charge of -1.

### Subject:Biology

TutorMe
Question:

Give an example of how structure fits function in biology.

Avery W.

One example of how structure fits function is red blood cells. Red blood cells are designed to supply oxygen to your tissues by transporting oxygen through the blood stream on a molecule called hemoglobin. Red blood cells are flexible, narrow, and oxygen-rich. The size and flexibility of red blood cells allows them to move through narrow blood vessels, while the high iron content gives the hemoglobin molecule on red blood cells a high affinity for binding oxygen.

### Subject:Algebra

TutorMe
Question:

What are two methods for solving systems of equations?

Avery W.

One method is elimination, where you multiply both sides of one equation by a factor that allows you to eliminate one of the variables. Another method is substitution, where you can define one variable in terms of another and substitute that new variable definition for the original variable, which will also eliminate one of the variables.

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