| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
Which of these is not a type of fat?
saturated |
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polyunsaturated |
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monounsaturated |
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cholesterol |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils).
A person's genotype is their genetic makeup and includes:
recessive alleles |
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dominant alleles |
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both dominant and recessive alleles |
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phenotypes |
A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.
Veins carry blood __________ the heart.
away from |
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all of these |
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back to |
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within |
Veins carry blood back to the heart from the body. While arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood. Like the heart, veins contain valves to prevent blood backflow.
An asteroid belt holds many of the asteroids in our solar system. It is located between the orbits of which planets?
Mars and Earth |
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Mars and Jupiter |
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Mercury and Venus |
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Jupiter and Saturn |
The solar system also contains over a million rocky fragments of at least 1km in diameter called asteroids as well as millions more with smaller diameters. Many of these asteroids are an asteroid belt between the orbits of Mars and Jupiter.
Water has a refractive index of 1.33. Which of the following is true?
light travels 1.33 times slower in a vacuum than it does in water |
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light is 1.33 times dimmer in a vacuum than it is in water |
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light travels 1.33 times faster in a vacuum than it does in water |
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light is 1.33 times brighter in a vacuum than it is in water |
The speed of light varies based on the material that the waves are passing through. The refractive index of a material indicates how easily light travels through it compared to how easily light travels through a vacuum. For example, the refractive index of water is 1.33, meaning that light travels 1.33 times faster in a vacuum than it does in water.