| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.10 |
| Score | 0% | 62% |
Herbivores are __________ that subsist on producers like plants and fungus.
tertiary consumers |
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secondary consumers |
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primary consumers |
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scavengers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
mouth |
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small intestine |
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stomach |
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large intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
Absolute zero is which of the following?
the freezing point of hydrogen |
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the coldest temperature possible in the universe |
|
0°C |
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the freezing point of oxygen |
In contrast to the Celsius scale (measured in degrees centigrade) that fixes 0° at the freezing point of water and the Fahrenheit scale that uses 32°, the Kelvin scale fixes 0 at absolute zero (-273°C) which is the lowest temperature possible in the universe.
The crust and lithosphere of the Earth is made up of which of the following?
continents |
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plates |
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sedimentary rock |
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metamorphic rock |
The crust and the rigid lithosphere (upper mantle) is made up approximately thirty separate plates. These plates more very slowly on the slightly more liquid mantle (asthenosphere) beneath them. This movement has resulted in continental drift which is the gradual movement of land masses across Earth's surface. Continental drift is a very slow process, occurring over hundreds of millions of years.
Which of the following temperatures is least like the others?
-273°C |
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0K |
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32°F |
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absolute zero |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.