| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.19 |
| Score | 0% | 64% |
Which of these is not a function of bone in the human skeletal system?
store minerals |
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protect bodily organs |
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store vitamins |
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produce blood cells |
Hard bones provide primary support for the endoskeleton while more flexible cartilage is found at the end of all bones, at the joints, and in the nose and ears. In addition to providing support and protecting bodily organs, bones also produce blood cells and store minerals like calcium.
Veins carry blood __________ the heart.
back to |
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all of these |
|
within |
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away from |
Veins carry blood back to the heart from the body. While arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood. Like the heart, veins contain valves to prevent blood backflow.
In the metric system, what prefix represents 103?
milli |
|
centi |
|
mega |
|
kilo |
Kilo is the metric system prefix for 103.
What is a major difference between the somatic and autonomic nervous systems?
one controls voluntary activity, one controls involuntary activity |
|
one is inherited, the other is learned |
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one controls thinking, the other controls feeling |
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each belongs to a different nervous system |
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.
Convert 0C° to F°.
-32 |
|
32 |
|
16 |
|
0 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(0) + 32\)
\(F° = 0 + 32 = 32\)