| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.54 |
| Score | 0% | 71% |
In the classification of life, which of the following is not a kingdom?
bacteria |
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animals |
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plants |
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fungi |
Below domain, life is classified into six kingdoms: plants, animals, archaebacteria, eubacteria, and fungi. The last kingdom, protists, include all microscopic organisms that are not bacteria, animals, plants or fungi. (Archaebacteria and eubacteria are sometimes combined into a single kingdom, monera.)
In the food chain, consumers are classified as which of the following?
all of these |
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primary |
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tertiary |
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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.
During digestion, after proteins are broken down where does the undigested food go next?
esophagus |
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small intestine |
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stomach |
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large intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
The rate of vibration of sound is called:
period |
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frequency |
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amplitude |
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volume |
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.
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
stabilize, raise |
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decrease, raise |
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raise, decrease |
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decrease, stabilize |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.