| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.29 |
| Score | 0% | 66% |
__________ is caused by a lack of Vitamin C.
anemia |
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scurvy |
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shingles |
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diabetes |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
kinetic |
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gravitational |
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potential |
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inherent |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
Plant cells are surrounded by:
only a cell wall |
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neither a cell membrane nor a cell wall |
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a cell membrane and a cell wall |
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only a cell membrane |
Animal cells are surrounded by a semipermeable membrane which allows for the transfer of water and oxygen to and from the cell. In plant cells, the cell membrane is surrounded by a somewhat rigid cell wall which provides the cell structure and support.
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.
Which of the following describes the Earth's mantle?
makes up most of Earth's volume |
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dense |
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hot |
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all of these |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.