subject
Biology, 08.11.2019 22:31 kamand10

Jackie read that aloe vera promote healing of burned tissue. she decided to investigate the effect of varying amounts of aloe vera on the regeneration of planaria (a freshwater flatworm), regeneration is the process of growing back a lost body part. jackie bisected (cut in half) five planaria to obtain 10 parts (5 heads and 5 tails) for each experimental team. she applied concentrations of 0%, 10%, 20%, 30%, and 40% aloe vera to the teams. fifteen milliliters of aloe vera solutions were applied. all planaria were maintained in a growth chamber with identical food, temperature, and humidity. on day 15, jackie measured the amount of regeneration of the planaria parts and categorized regeneration as full, partial or none.1. what is the hypothesis (if/then statement) for this particular experiment? 2. what are the dependent variable and the independent variable? 3. what controls are they using in their experimental setup? 4. when they performed the experiment, they collected the data shown below: percent aloe vera count of regenerated planaria0% 210% 520% 730% 35. should the hypothesis be supported or rejected based on the experiment? why?

ansver
Answers: 2

Another question on Biology

question
Biology, 22.06.2019 05:00
Explain how organisms could be harmed by high levels of salt from roadways?
Answers: 1
question
Biology, 22.06.2019 05:30
How does the nervous system affect the excretory system?
Answers: 1
question
Biology, 22.06.2019 05:30
Why do oceanic plates tend to subduction when colliding with a continental plate
Answers: 3
question
Biology, 22.06.2019 10:00
Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.
Answers: 1
You know the right answer?
Jackie read that aloe vera promote healing of burned tissue. she decided to investigate the effect o...
Questions
question
Mathematics, 01.08.2019 20:30
question
Mathematics, 01.08.2019 20:30