| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.35 |
| Score | 0% | 67% |
Water coming to a boil on a stove, ice melting, and steam from a cup of coffee are all examples of which of the following?
reflection |
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conduction |
|
radiation |
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convection |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
Cellular fermentation takes place:
anaerobically |
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aerobically |
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in the presence of oxygen |
|
in plant cells |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
A subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. This desribes which of the following?
isotope |
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neutron |
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electron |
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proton |
An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.
Which of the following is not a base unit in the metric system?
degree Fahrenheit |
|
meter |
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liter |
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gram |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
When compared to eukaryotic cells, prokaryotic cells are:
less complex |
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more complex |
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similarly complex |
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none of these |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.