| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
What is a major difference between the somatic and autonomic nervous systems?
each belongs to a different nervous system |
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one controls thinking, the other controls feeling |
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one is inherited, the other is learned |
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one controls voluntary activity, one controls involuntary activity |
Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
An electrically charged atom is a(n):
proton |
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neutron |
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ion |
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electron |
A compound is a substance containing two or more different chemical elements bound together by a chemical bond. 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.
What part of the nervous system controls simple reflexes?
medulla |
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spinal cord |
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autonomic |
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cerebrum |
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 taxonomy, domains are the broadest classification of life. How many domains are there?
6 |
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3 |
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dozens |
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5 |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
__________ is caused by a lack of iron in the diet.
diabetes |
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shingles |
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scurvy |
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anemia |
Anemia, which may cause weakness, dizziness, and headaches is caused by a lack of iron in the diet.