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Biology, 22.06.2019 09:30
Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.
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Biology, 22.06.2019 12:30
Select the word from the list that best fits the definition the temperature to which air must cool to be saturated
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Biology, 22.06.2019 12:30
This is the interaction of two organisms where one is and the other is neither nor harmed.
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Biology, 22.06.2019 13:00
How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans
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When did cell theory become an accepted part of biology?...
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