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27
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What is the second class of fish after ray-finned fish?
answered
Jan 7
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Science
0
votes
9
views
What is it that surrounds cells and serve to keep the insides separated from the outsides?
answered
Jan 6
in
Science
0
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32
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What is a relationship between living things that depend on the same resources?
answered
Jan 6
in
Science
0
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32
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What french chemist discovered the radioactive elements polonium and radium?
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Jan 6
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Science
0
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40
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Solids and liquids are phases of matter that have their own unique what?
answered
Dec 31, 2024
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Science
0
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59
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In a tropical rainforest, where are ferns common?
answered
Dec 31, 2024
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Science
0
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44
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Fermat's principle states that what will always take the path that takes the least amount of time?
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Dec 30, 2024
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Science
0
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45
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Energy comes in discrete packages called what?
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Dec 30, 2024
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Science
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