| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.91 |
| Score | 0% | 58% |
During digestion, after proteins are broken down where does the undigested food go next?
esophagus |
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large intestine |
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stomach |
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small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
In the heart, the __________ artery and vein manage blood flow to the lungs.
aorta |
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atrial |
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capillary |
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pulmonary |
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 acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object." This describes which of Newton's laws of motion?
second |
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fourth |
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third |
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first |
Newton's second law of motion states that The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. This law basically means that the greater the mass of an object, the more force is needed to overcome its inertia.
Which of the following is true about species groups?
an ecosystem is a biological population |
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a community is made up of a group of populations |
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a biome is a made up of a group of biospheres |
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a population is made up of a group of communities |
A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.
The Rh factor antigen in blood determines:
universal donor status |
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blood type |
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postive or negative |
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universal recipient status |
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.