| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.24 |
| Score | 0% | 65% |
Earth's troposphere layer is which of the following?
coldest |
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farthest from the surface |
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closest to the surface |
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hottest |
The Earth's atmosphere has several layers starting with the troposphere which is closest in proximity to the surface. Containing most of the Earth's breathable air (oxygen and nitrogen), it's a region with warmer temperatures closer to the surface and cooler temperatures farther away which results in the rising and falling air that generates weather.
The Rh factor antigen in blood determines:
universal recipient status |
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universal donor status |
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postive or negative |
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blood type |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.
In the metric system, what prefix represents 10-3?
mega |
|
centi |
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kilo |
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milli |
In the metric system, milli is the prefix for 10-3.
Water coming to a boil on a stove, ice melting, and steam from a cup of coffee are all examples of which of the following?
convection |
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conduction |
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radiation |
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reflection |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
The small intestine utilizes enzymes produced where?
small intestine |
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pancreas |
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all of these are correct |
|
liver |
The small intestine is where most digestion takes place. As food travels along the small intestine it gets broken down completely by enzymes secreted from the walls. These enzymes are produced in the small intestine as well as in the pancreas and liver. After the enzymes break down the food, the resulting substances are then absorbed into the blood via capillaries in the small intestine walls.