| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.68 |
| Score | 0% | 74% |
The brain and spinal cord make up the __________ nervous system.
somatic |
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peripheral |
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central |
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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.
In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:
scavengers |
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primary consumers |
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producers |
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decomposers |
Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.
In the foood chain, producers 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:
photosynthesis |
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autotrophs |
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decomposition |
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chemosynthesis |
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
What part of the brain is responsible for the major senses (thinking, hearing, seeing)?
medulla |
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brainstem |
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cerebellum |
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cerebrum |
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
sentient |
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spiny |
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arthropod |
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vertebrate |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.