| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.27 |
| Score | 0% | 65% |
In the classification of life, which of the following is not a domain?
bacteria |
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animalia |
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eukaryota |
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archaea |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
A transition zone between two air masses is called:
front |
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thunderstorm |
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fog |
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boundary |
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.
"For every action, there is an equal and opposite reaction." This describes which of Newton's laws of motion?
second |
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third |
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fourth |
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first |
Newton's third law of motion states that For every action, there is an equal and opposite reaction. When an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction on the first object.
In cell biology, what part of the cell contains organelles?
nucleus |
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cytoplasm |
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cell wall |
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cell membrane |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles.
The four planets closest to the Sun are called terrestrial. What does terrestrial mean?
the planets are Earth-like |
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the planets have magnetic fields |
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the planets have water |
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the planets have moons |
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.