Biology, 20.09.2020 16:01 Blakemiller2020
Jackie read that Aloe vera promote healing on burned tissue. She decided to investigate the effect of various amounts of Aloe vera on the regeneration of planaria. She bisected the planaria to obtain 10 parts (5 heads and 5 tails) for each experimental group. She applied concentrations of 0%, 10%, 20%, and 30% Aloe vera to the groups. Fifteen mL of Aloe vera solutions were applied. All planaria were maintained in a growth chamber with identical food, temperature, and humidity. On day 15, Jackie observed the regeneration of the planaria parts and categorized development as full, partial, or none.
What is the hypothesis (if/then statement) for this particular experiment?
What are the dependent variable and the independent variable?
What controls are they using in their experimental setup?
When they performed the experiment, they collected the data shown below:
Percent Aloe Vera Count of Regenerated Planaria
0% 2
10% 5
20% 7
30% 3
Should the hypothesis be supported or rejected based on the experiment? Why
Answers: 2
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Jackie read that Aloe vera promote healing on burned tissue. She decided to investigate the effect o...
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