| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.48 |
| Score | 0% | 70% |
A transition zone between two air masses is called:
fog |
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front |
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boundary |
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thunderstorm |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
The respiratory and circulatory systems are similar in that they:
deoxygenate blood |
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add carbon dioxide |
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transport oxygen |
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transport nutrients |
Like the respiratory system, the circulatory system serves to transport oxygen throughout the body while removing carbon dioxide. In addition, the circulatory system transports nutrients from the digestive system.
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic weight |
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number of electron shells |
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atomic number |
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atomic mass |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
In the food chain, consumers are classified as which of the following?
tertiary |
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all of these |
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primary |
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secondary |
Most animals consume other organisms to survive. Consumers (heterotrophs) are divided into three types, primary, secondary, and tertiary, based on their place in the food chain.
The angle of reflection is equal to which the following?
90° |
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angle of incidence |
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focal point |
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refractive index |
The law of reflection specifies how waves, including light waves, bounce off of surfaces. Specifically, the angle of incidence of the approaching wave is equal to the angle of reflection of the reflected wave as measured from a line perpendicular (90°) to the surface.