| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.06 |
| Score | 0% | 61% |
In the metric system, what prefix represents 103?
kilo |
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centi |
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milli |
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mega |
Kilo is the metric system prefix for 103.
212°F is how many °C?
100 |
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-100 |
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0 |
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\(135 {5 \over 9}\) |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
Which of these represents the path of blood flow through the heart?
left atrium → right ventricle → lungs → left atrium → right ventricle |
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right atrium → right ventricle → lungs → left atrium → left ventricle |
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right atrium → left ventricle → lungs → left atrium → right ventricle |
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left atrium → left ventricle → lungs → right atrium → right ventricle |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.
atrium, atrium |
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ventricle, atrium |
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atrium, ventricle |
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ventricle, ventricle |
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.
Examples of secondary consumers include:
plankton |
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chickens |
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grasshoppers |
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wolves |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.