| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.44 |
| Score | 0% | 69% |
__________ is caused by a lack of Vitamin C.
anemia |
|
scurvy |
|
diabetes |
|
shingles |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
Which of the following states of matter exists at the lowest temperature?
gas |
|
solid |
|
none of these |
|
liquid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
"An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." This describes which of Newton's laws of motion?
fourth |
|
second |
|
first |
|
third |
Also known as the law of inertia, Newton's first law of motion states that An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
When light travels between two substances it bends. This is called:
convection |
|
reflection |
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conduction |
|
refraction |
Because different materials have different refractive indices, light changes speed when passing from one material to another. This causes the light to bend (refraction) at an angle that depends on the change in refractive index between the materials. The greater the difference, the higher the angle of refraction.
When compared to eukaryotic cells, prokaryotic cells are:
similarly complex |
|
more complex |
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less complex |
|
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.