| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
What is a major difference between the somatic and autonomic nervous systems?
one controls voluntary activity, one controls involuntary activity |
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each belongs to a different nervous system |
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one is inherited, the other is learned |
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one controls thinking, the other controls feeling |
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.
Which of blood component fights infection?
red blood cells |
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plasma |
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platelets |
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white blood cells |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
DNA is encoded through a combination of which of the following?
helix |
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genes |
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nucleotides |
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gametes |
Deoxyribonucleic acid (DNA) is the molecule that contains genetic information. DNA is encoded through a combination of nucleotides that bind together in a specific double helix pattern.
Which of the following states of matter exists at the highest temperature?
gas |
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none of these |
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liquid |
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solid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
Neurons are part of the __________ nervous system.
central |
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peripheral |
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somatic |
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autonomic |
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.