| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.97 |
| Score | 0% | 79% |
What is a major difference between the somatic and autonomic nervous systems?
one is inherited, the other is learned |
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one controls thinking, the other controls feeling |
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one controls voluntary activity, one controls involuntary activity |
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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.
This skeletal system is common in arthropods like insects, spiders, and crustaceans.
exoskeleton |
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endoskeleton |
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bone |
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vertebrate |
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.
The number system most used in science is the:
metric system |
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American system |
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English system |
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British system |
The metric system is a number system that designates one base unit for each type of measurement. For example, the base unit for length is the meter and the base unit for mass is the gram.
What type of cloud is responsible for fog?
cumulonimbus |
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cirrus |
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cumulus |
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stratus |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.
A dominant trait will be expressed when paired with:
a chromosome |
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a gene |
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a recessive trait |
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a dominant trait |
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.