| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.76 |
| Score | 0% | 75% |
Herbivores are __________ that subsist on producers like plants and fungus.
primary consumers |
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scavengers |
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tertiary consumers |
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secondary consumers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The large intestine does which of the following?
processes the physical waste produced by digestion |
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breaks down proteins |
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breaks down starches |
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breaks down fats |
The large intestine (colon) follows the small intestine and processes the physical waste produced by digestion, absorbing water and minerials that remain back into the body. Solid waste is then stored in the rectum while liquid waste is stored in the bladder.
This skeletal system is common in arthropods like insects, spiders, and crustaceans.
exoskeleton |
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endoskeleton |
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vertebrate |
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bone |
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.
In which type of compound are electrons shared between atoms?
covalent |
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ionic |
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molecular |
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chemical |
A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.
The respiratory and circulatory systems are similar in that they:
add carbon dioxide |
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transport oxygen |
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deoxygenate blood |
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transport nutrients |
Like the respiratory system, the circulatory system serves to transport oxygen throughout the body while removing carbon dioxide. In addition, the circulatory system transports nutrients from the digestive system.