| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.41 |
| Score | 0% | 68% |
When two air masses meet and neither is displaced, what kind of front is present?
cold |
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stationary |
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occluded |
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warm |
When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.
The universal recipient blood type can recieve any other blood type. Which blood type is the universal recipient?
O-negative |
|
AB |
|
AB-positive |
|
O |
Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.
Work is measured in:
amps |
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joules or newton-meters |
|
watts |
|
horsepower |
Work is performed on an object when an applied force causes displacement along the same vector. Measured in joules (J) or newton-meters (Nm), work is calculated by multiplying force times displacement: \(W = \vec{F}\vec{d}\)
A person's genotype is their genetic makeup and includes:
recessive alleles |
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phenotypes |
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dominant alleles |
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both dominant and recessive alleles |
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.
As part of digestion, the liver produces bile which breaks down:
protein |
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starches |
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fat |
|
sugars |
The liver produces bile which emulsifies (separates) fat.