| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.97 |
| Score | 0% | 59% |
When compared to eukaryotic cells, prokaryotic cells are:
more complex |
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similarly complex |
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less complex |
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none of these |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
habitats |
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minerals |
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plants |
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animals |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Which of the following does not represent the freezing point of water?
32°F |
|
0°F |
|
273K |
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0°C |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
small intestine |
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large intestine |
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mouth |
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stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
A compound is a substance containing two or more different chemical elements bound together by what kind of bond?
chemical |
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ionic |
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covalent |
|
molecular |
A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.