| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.54 |
| Score | 0% | 71% |
Leafy vegetables, beans, potatoes, fruits, and whole grains are good sources of:
unsaturated fat |
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saturated fat |
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fiber |
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protein |
Fiber provides bulk to help the large intestine carry away waste. Good sources of fiber are leafy vegetables, beans, potatoes, fruits, and whole grains.
In the heart, the __________ artery and vein manage blood flow to the lungs.
aorta |
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pulmonary |
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capillary |
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atrial |
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.
When compared to eukaryotic cells, prokaryotic cells are:
none of these |
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more complex |
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similarly complex |
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less complex |
Cells are classified into one of two groups based on whether or not they have a nucleus. Eukaryotic cells have a nucleus, prokaryotic cells do not have a nucleus and therefore have a less complex structure than eukaryotic cells.
Which of the following is not true about simple magnets?
opposite poles attract each other |
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all of these are untrue |
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same poles repel each other |
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opposite poles repel each other |
Simple magnets have two poles, north and south, and opposite poles attract each other (N attracts S, S attracts N). Likewise, the same pole of two magnets repel (N repels N, S repels S). The Earth has a magnetic field and North and South Poles which enables the use of a magnetic compass to determine direction.
What part of the food chain serves only as food for other organisms?
decomposers |
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secondary consumers |
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primary consumers |
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producers |
Producers (autotrophs) serve as a food source for other organisms. Typical producers are plants that can make their own food through photosynthesis and certain bacteria that are capable of converting inorganic substances into food through chemosynthesis