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High School Biology Practice Test: Introduction to Biology (Fill in the blank)
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High School Biology Practice Test: Introduction to Biology (Fill in the blank)
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10 Questions

1. The energy needed to start a chemical reaction is called ___________.

2. A substance that consists of two or more elements is called a(n) ____________.

3. Anything that takes up space and has mass is called ____________.

4. Acidity is measured on a scale called ____________.

5. The sum of all the biochemical reactions in an organism is known as ____________.

6. Both DNA and RNA are the type of organic compounds called ____________.

7. The smallest particle of an element that still has the properties of that element is a(n) ____________.

8. An example of a complementary base pair is thymine paired with ____________.

9. Large, complex carbohydrates consist of small repeating units called ____________.

10. A nucleotide consists of a base, a phosphate group, and a(n) ____________.

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