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## Questions

### Subject:Biology

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Question:

Explain why the following sentence is incorrect: "Natural selection created the mutation in those beetles."

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Natural selection does not actually create mutations. It only acts upon already existing physical/genetic differences. Mutations also cannot be created in any fashion and arise spontaneously.

### Subject:ACT

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Question:

What is y, the second term in the geometric sequence 1/5, y, 1/405, 1/3,645?

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y = 1/45. In a geometric series, the ratio of any term to its following term is constant, so we can find that ratio by dividing 1/3,645 by 1/405, then multiplying 1/5 by that ratio.

### Subject:Physics

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Question:

When an object is in free fall, how can you best describe why the object gets faster as it nears the surface of the Earth in terms of Energy?

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The Potential Energy of the object decreases, and get converted into Kinetic Energy in order to maintain the Conservation of Energy.

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