| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
large intestine |
|
mouth |
|
stomach |
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small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
In the metric system, what prefix represents 103?
milli |
|
mega |
|
centi |
|
kilo |
Kilo is the metric system prefix for 103.
When two air masses meet and neither is displaced, what kind of front is present?
cold |
|
warm |
|
stationary |
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occluded |
When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.
What part of the food chain serves only as food for other organisms?
primary consumers |
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decomposers |
|
secondary consumers |
|
producers |
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
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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produce blood cells |
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store vitamins |
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.