| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.06 |
| Score | 0% | 61% |
In cell biology, cytokinesis results in two separate:
nuclei |
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chromatids |
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cells |
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chromosomes |
During cell division, the cytokinesis phase occurs when cytoplasm and cell membranes complete their separation resulting in two separate cells.
Which of the following is not a method of heat transfer?
radiation |
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conduction |
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reflection |
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convection |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
Which of the following is the primary difference between a comet and an asteroid?
comets orbit the Sun |
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asteroids contain frozen water |
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asteroids have a coma |
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comets have an atmosphere |
A comet is a loose collection of ice, dust, and small rocky particles that, in contrast to an asteroid, has an extended atmosphere surrounding the center. When passing close to the Sun, this atmosphere warms and begins to release gases forming a visible coma or tail.
In the pancreas, lipase converts fat to:
glycerol and fatty acids |
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complex carbohydrates |
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amino acids |
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simple sugars |
The acids produced by the pancreas contain several enzymes that aid in digestion. Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.
Which of the following states of matter exists at the lowest temperature?
liquid |
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solid |
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none of these |
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gas |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.