| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.54 |
| Score | 0% | 71% |
In cell biology, the primary difference between anaerobic and aerobic respiration is that aerobic respiration requires:
sugar |
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oxygen |
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water |
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mitochondria |
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.
In the metric system, what prefix represents 10-3?
kilo |
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milli |
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mega |
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centi |
In the metric system, milli is the prefix for 10-3.
Herbivores are __________ that subsist on producers like plants and fungus.
scavengers |
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primary consumers |
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secondary consumers |
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tertiary consumers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The ozone layer is in which of Earth's atmospheric layers?
thermosphere |
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stratosphere |
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mesosphere |
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troposphere |
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.
The rate of vibration of sound is called:
period |
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volume |
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amplitude |
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frequency |
The rate of vibration of sound is called frequency and is measured in hertz (Hz). One hertz is one repetition per second and sounds with high frequency have a higher pitch than sounds with lower frequency. Humans can hear sounds in the range of 20 Hz to 20 kHz.