| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.59 |
| Score | 0% | 52% |
Which of the following temperatures is least like the others?
absolute zero |
|
32°F |
|
0K |
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-273°C |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.
During continental drift, the drifting plates move across which of the following?
fault lines |
|
sediment |
|
liquid mantle |
|
water |
The crust and the rigid lithosphere (upper mantle) is made up of approximately thirty separate plates. These plates more very slowly on the slightly more liquid mantle (asthenosphere) beneath them. This movement has resulted in continental drift which is the gradual movement of land masses across Earth's surface. Continental drift is a very slow process, occurring over hundreds of millions of years.
Neurons are part of the __________ nervous system.
somatic |
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autonomic |
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central |
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peripheral |
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.
The four planets closest to the Sun are called terrestrial. What does terrestrial mean?
the planets have water |
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the planets have moons |
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the planets have magnetic fields |
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the planets are Earth-like |
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.
Cellular fermentation takes place:
in plant cells |
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in the presence of oxygen |
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aerobically |
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anaerobically |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.