| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.09 |
| Score | 0% | 62% |
The brain and spinal cord make up the __________ nervous system.
autonomic |
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somatic |
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peripheral |
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central |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.
In the pancreas, lipase converts fat to:
glycerol and fatty acids |
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complex carbohydrates |
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amino acids |
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simple sugars |
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.
In the food chain, omnivores may be which of the following?
primary or secondary consumers |
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secondary or tertiary consumers |
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secondary consumers or scavengers |
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primary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
Small rocks shed by asteroids and comets that reach the earth are called:
meteorites |
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meteors |
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shooting stars |
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meteoroids |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
side effects |
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results |
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reactants |
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products |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).