| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.46 |
| Score | 0% | 69% |
What is a major difference between the somatic and autonomic nervous systems?
one controls voluntary activity, one controls involuntary activity |
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one controls thinking, the other controls feeling |
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one is inherited, the other is learned |
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each belongs to a different nervous system |
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.
Plant cells may generate energy through which of the following?
aerobic respiration |
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photosynthesis |
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anaerobic respiration |
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all of these |
Some plant cells produce their own energy through photosynthesis which is the process by which sunlight, carbon dioxide, and water react to make sugar and oxygen. Animal cells cannot produce their own energy and, instead, generate energy when mitochondria consume outside sugar and oxygen through aerobic respiration.
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
reactants |
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results |
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side effects |
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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).
The transfer of heat by the circulation or movement of the heated parts of a liquid or gas is called:
diffusion |
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convection |
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radiation |
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conduction |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. Examples of heat transfer by convection include water coming to a boil on a stove, ice melting, and steam from a cup of coffee.
Which of the following is the smallest component of an element that still retains the properties of the element?
molecule |
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atom |
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neutron |
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element |
An atom is the smallest component of an element that still retains the properties of the element.