| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.84 |
| Score | 0% | 57% |
What part of the food chain serves only as food for other organisms?
secondary consumers |
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producers |
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decomposers |
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primary consumers |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis
What part of the nervous system controls simple reflexes?
autonomic |
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spinal cord |
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cerebrum |
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medulla |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
In which type of compound does one atom borrow an electron from another atom?
covalent |
|
ionic |
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acidic |
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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.
A compound is a substance containing two or more different chemical elements bound together by what kind of bond?
ionic |
|
molecular |
|
chemical |
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covalent |
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.
During digestion, after proteins are broken down where does the undigested food go next?
esophagus |
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large intestine |
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stomach |
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small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.