| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.46 |
| Score | 0% | 69% |
Which of these digestive enzymes is not produced by the pancreas?
trypsin |
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pancreatic amylase |
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gastric acid |
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lipase |
The acids produced by the pancreas contain several enzymes that aid in digestion. Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.
The envelope of gases surrounding the planet is called the:
lithosphere |
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atmosphere |
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hydrosphere |
|
geosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
In the metric system, what prefix represents 10-3?
centi |
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mega |
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kilo |
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milli |
In the metric system, milli is the prefix for 10-3.
Earth's breathable air is held in which atmospheric layer?
stratosphere |
|
mesosphere |
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thermosphere |
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troposphere |
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.
A dominant trait will be expressed when paired with:
a chromosome |
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a dominant trait |
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a recessive trait |
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a gene |
The traits represented by genes are inherited independently of each other (one from the male and one from the female gamete) and a trait can be dominant or recessive. A dominant trait will be expressed when paired with a recessive trait while two copies of a recessive trait (one from each parent) must be present for the recessive trait to be expressed.