| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
Which of blood component carries oxygen?
red blood cells |
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plasma |
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white blood cells |
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platelets |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
sentient |
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spiny |
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arthropod |
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vertebrate |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
During digestion, after proteins are broken down where does the undigested food go next?
small intestine |
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esophagus |
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large intestine |
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stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
The Rh factor antigen in blood determines:
universal donor status |
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universal recipient status |
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blood type |
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postive or negative |
Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.
The two heart chambers that collect blood are called:
valves |
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atria |
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ventricles |
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aorta |
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.