| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.67 |
| Score | 0% | 73% |
A subatomic particle found in the nucleus of an atom. It carries a positive electric charge. This desribes which of the following?
neutron |
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atom |
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proton |
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electron |
A proton is a subatomic particle found in the nucleus of an atom. It carries a positive electric charge.
Which of the following is not a base unit in the metric system?
gram |
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meter |
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degree Fahrenheit |
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liter |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
As part of digestion, the liver produces bile which breaks down:
fat |
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sugars |
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starches |
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protein |
The liver produces bile which emulsifies (separates) fat.
Which of the following describes the Earth's mantle?
primarily solid |
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solid |
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primarily liquid |
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liquid |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.
Heredity is the passing on of physical or mental characteristics genetically from one __________ to another.
generation |
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species |
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cell |
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family |
Heredity is the passing on of physical or mental characteristics genetically from one generation to another. Heredity is made possible via large strings of chromosomes which carry information encoded in genes.