| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.29 |
| Score | 0% | 66% |
Leafy vegetables, beans, potatoes, fruits, and whole grains are good sources of:
saturated fat |
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protein |
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fiber |
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unsaturated fat |
Fiber provides bulk to help the large intestine carry away waste. Good sources of fiber are leafy vegetables, beans, potatoes, fruits, and whole grains.
Which of the following is the primary difference between a comet and an asteroid?
asteroids have a coma |
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comets have an atmosphere |
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asteroids contain frozen water |
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comets orbit the Sun |
A comet is a loose collection of ice, dust, and small rocky particles that, in contrast to an asteroid, has an extended atmosphere surrounding the center. When passing close to the Sun, this atmosphere warms and begins to release gases forming a visible coma or tail.
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
spiny |
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sentient |
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vertebrate |
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arthropod |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
In the food chain, omnivores may be which of the following?
primary or tertiary consumers |
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secondary consumers or scavengers |
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primary or secondary consumers |
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secondary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
Which of the following is metamorphic rock?
marble |
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obsidian |
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granite |
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coal |
The Earth's rocks fall into three categories based on how they're formed. Igneous rock (granite, basalt, obsidian) is formed from the hardening of molten rock (lava), sedimentary rock (shale, sandstone, coal) is formed by the gradual despositing and cementing of rock and other debris, and metamorphic rock (marble, slate, quartzite) which is formed when existing rock is altered though pressure, temperature, or chemical processes.