| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
In cell biology, where does DNA replication take place?
nucleus |
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cytoplasm |
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Golgi apparatus |
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mitochondria |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
Examples of primary consumers include:
fish |
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all of these |
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rats |
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cows |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
What is the body's largest artery?
vena cava |
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arteriole |
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capillary |
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aorta |
The aorta is the body's largest artery and receives blood from the pulmonary vein via the left ventricle. From there, blood is circulated through the rest of the body through smaller arteries called arterioles that branch out from the heart. Finally, blood is delivered to bodily tissues through capillaries.
Which of the following members of the food chain are most alike?
primary consumers and omnivores |
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producers and tertiary consumers |
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herbivores and autotrophs |
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scavengers and decomposers |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.
In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.
ventricle, atrium |
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atrium, 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.