| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.44 |
| Score | 0% | 69% |
The gravitational interaction of Earth and the Moon is responsible for which of these?
tides |
|
day and night cycle |
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seasons |
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the northern lights |
Tides are caused by the gravitational interaction of Earth and the Moon.
In the food chain, consumers are classified as which of the following?
all of these |
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secondary |
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tertiary |
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primary |
Most animals consume other organisms to survive. Consumers (heterotrophs) are divided into three types, primary, secondary, and tertiary, based on their place in the food chain.
In the pancreas, lipase converts fat to:
complex carbohydrates |
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amino acids |
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simple sugars |
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glycerol and fatty acids |
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 is the narrowest classification of life?
genus |
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species |
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family |
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domain |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.
When compared to eukaryotic cells, prokaryotic cells are:
less complex |
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similarly complex |
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none of these |
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more 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.