| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.00 |
| Score | 0% | 60% |
Which of the following is metamorphic rock?
granite |
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marble |
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obsidian |
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coal |
The Earth's rocks fall into three categories based on how they're formed. Igneous rock (granite, basalt, obsidian) is formed from the hardening of molten rock (lava), sedimentary rock (shale, sandstone, coal) is formed by the gradual despositing and cementing of rock and other debris, and metamorphic rock (marble, slate, quartzite) which is formed when existing rock is altered though pressure, temperature, or chemical processes.
The universal recipient blood type can recieve any other blood type. Which blood type is the universal recipient?
AB-positive |
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AB |
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O |
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O-negative |
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.
A transition zone between two air masses is called:
boundary |
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fog |
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thunderstorm |
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front |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
In the heart, the __________ artery and vein manage blood flow to the lungs.
capillary |
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pulmonary |
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aorta |
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atrial |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
As part of digestion, the liver produces bile which breaks down:
fat |
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protein |
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sugars |
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starches |
The liver produces bile which emulsifies (separates) fat.