| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.61 |
| Score | 0% | 72% |
Which of the following is the smallest component of an element that still retains the properties of the element?
neutron |
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molecule |
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atom |
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element |
An atom is the smallest component of an element that still retains the properties of the element.
Which of these is important for the body's maintenance, growth, and repair?
protein |
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fiber |
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carbohydrates |
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fats |
Found in both animal sources (meat, fish, eggs, cheese) and vegetables (beans, nuts, some grains), proteins are important for the body's maintenance, growth, and repair.
The heart __________ blood.
deoxygenates |
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oxygenates |
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filters |
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creates |
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 cell biology, cytokinesis results in two separate:
chromosomes |
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chromatids |
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nuclei |
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cells |
During cell division, the cytokinesis phase occurs when cytoplasm and cell membranes complete their separation resulting in two separate cells.
Arteries carry __________ blood at __________ pressure.
deoxygenated, low |
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oxygenated, high |
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oxygenated, low |
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deoxygenated, high |
Veins carry blood back to the heart from the body. While arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood. Like the heart, veins contain valves to prevent blood backflow.