You are interested in researching the effects of vitamin c on colds. for your study, you round up a group of people, all roughly the same age and healthy. you give them all vitamin c pills to take every day and have them check in with you once a month to see if they get a cold. why is this not a good study design
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Biology, 22.06.2019 03:00
Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
Answers: 2
Biology, 22.06.2019 10:00
Witch theory suggests all living things are made up of cell or cells
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Biology, 22.06.2019 11:00
When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated
Answers: 3
You are interested in researching the effects of vitamin c on colds. for your study, you round up a...
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