| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
Which of the following is the smallest component of an element that still retains the properties of the element?
molecule |
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atom |
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neutron |
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element |
An atom is the smallest component of an element that still retains the properties of the element.
The universal recipient blood type can recieve any other blood type. Which blood type is the universal recipient?
O-negative |
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O |
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AB |
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AB-positive |
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 subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
neutron |
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electron |
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proton |
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atom |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Which of the following is the formula for power?
\(P = \vec{w}t\) |
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\(P = {\vec{w} \over t}\) |
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\(P = w t\) |
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\(P = {w \over t}\) |
Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).
Which of these represents the path of blood flow through the heart?
left atrium → left ventricle → lungs → right atrium → right ventricle |
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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 |
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.