Biology, 07.04.2020 03:01 lizzlegnz999
You are studying the effect of fertilizer on the yield of tomatoes. In order to do this, you use the same type of tomato seedlings, make sure they get the same amount of water, and are exposed to the same amount of sunlight. What type of experimental variable is the yield of tomatoes? a) dependent variable b) independent variable c) controlled variable d) none of the above
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What happens when a scientific theory is shown to be an accurate description of a phenomenon?
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Dna in the nucleus carries the genetic code for making proteins in ribosomes. the diagram shows a model of dna. which part of the dna molecule codes for the amino acid sequence in the protein? a) sugar b) phosphate c) deoxyribosed) nitrogen bases
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Biology, 23.06.2019 00:30
The permo-triassic extinction event had a greater impact on the number of earth’s species than did the extinction event at the end of the cretaceous. question 4 options: true false
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You are studying the effect of fertilizer on the yield of tomatoes. In order to do this, you use the...
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