| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.62 |
| Score | 0% | 72% |
__________ is caused by a lack of Vitamin C.
scurvy |
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diabetes |
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shingles |
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anemia |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
The energy posessed by a thrown baseball is an example of what kind of energy?
transitional |
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gravitational |
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kinetic |
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potential |
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.
Vector quantities are fully described by which of the following?
a magnitude only |
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a magnitude and a direction |
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a direction and a polarity |
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a direction only |
Velocity and displacement are vector quantities which means each is fully described by both a magnitude and a direction. In contrast, scalar quantities are quantities that are fully described by a magnitude only. A variable indicating a vector quantity will often be shown with an arrow symbol: \(\vec{v}\)
In a eukaryotic cell, which organelles deal with proteins?
endoplasmic reticulum |
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Golgi apparatus |
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ribosomes |
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all of these deal with proteins |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. Ribosomes produce proteins, endoplasmic reticulum helps synthesize proteins and fats, and Golgi apparatus prepares proteins for use.
The heat from the Sun traveling to Earth is an example of which of the following?
electricity |
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convection |
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conduction |
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radiation |
Radiation occurs when electromagnetic waves transmit heat. An example is the heat from the Sun as it travels to Earth.