| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.31 |
| Score | 0% | 66% |
An element in the physical state of __________ maintains neither a constant volume nor a constant shape.
liquid |
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plasma |
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gas |
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solid |
The gaseous state occurs at a higher temperature range than the solid and liquid states of the same substance. In this state, molecules flow very freely around each other and will spread out as far as they're able. Gases maintain neither a constant volume nor a constant shape.
In the heart, the __________ artery and vein manage blood flow to the lungs.
atrial |
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aorta |
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pulmonary |
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capillary |
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.
In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.
ventricle, ventricle |
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atrium, atrium |
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atrium, ventricle |
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ventricle, atrium |
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.
The first step in the water cycle is:
precipitation |
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infiltration |
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evaporation |
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reclamation |
The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.
__________ and __________ pair to strengthen bones.
calcium, vitamin A |
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iron, calcium |
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vitamin D, magnesium |
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vitamin D, calcium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.