Biology, 23.06.2019 11:00 maxandalexplayz
Starch turns a blue-black color in the presence of iodine. julian decides to use this information to test the permeability of some dialysis tubing. julian fills the tubing with a starch solution and places it in a beaker of iodine and water. after two hours, the starch solution in the dialysis tubing turns blue-black. the iodine solution remains the same color (it doesn't change colors). what do julian's results show about the permeability of the tubing?
Answers: 3
Biology, 21.06.2019 23:30
Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.
Answers: 1
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Biology, 22.06.2019 20:10
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Starch turns a blue-black color in the presence of iodine. julian decides to use this information to...
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