Hypothesis-If i put two females and one male in a vial for three weeks Then there will be 323 adults by the end of three weeks Because everyday 20 eggs are hatched and each egg takes 14 days to become an adult. So by the 21st day there should be 161 adults. Then times that by 2 because there is two females.
Background Research-A fruit fly takes two weeks to turn into an adult. The first day the egg is laid. The next stage in the fruit fly cycle is the larva. The fruit fly is in the larva stage for seven days. After the larva stage comes the pupa stage. The fruit fly is in the pupa stage for six days. Then after the pupa stage, the fruit fly is an adult. After the fruit fly is an adult, two days after they can start having babies. Although the fruit fly cycle is short, they produce twenty babies a day and keep their cycle going on and on.
Produce-Step1-My group had to pick a combination of two females and one male.
Step2-We put the combination of fruit flies to sleep and determined which ones were male and female, then put our combination in a vial.
Step3-We do weekly observations of our vial and two other groups' vial with the same combination to see the difference.
Step4-When the three weeks are over we are going to put all of the fruit flies to sleep
and see how many fruit flies we have.
Data Table and Graph
In the beginning of my experiment, I hypothesized that if I put two females and one male in a vial for three weeks with a food source, then I expect 323 adults at the end of three weeks. I
thought this because everyday 20 eggs are hatched and each egg takes 14 days to become an adult. So by the 21st day there should be 161 adults. Then you times that by 2 because there're two females. My data does not support my hypothesis because the average number of adults in my three vials was 154.3. This is nowhere near what I predicted. It is way to lower.
There are many reasons why my hypothesis and results are wrong and way off. One reason is because some flies could have got stuck in there food and died. Another reason is because some flies could have got stuck in the foam at the top blocking them from escaping the vial.
Conclusion-In my experiment, I tried to find out if the number of fruit flies I predicted there to be after three weeks would support my hypothesis. After predicting, my group and I set up our experiment and after my experiment my hypothesis didn't match my data. This could be because of flies getting trapped in there food source or the foam at the top of the vial and dying. If I had the chance to do this experiment over I would defiantly use something else besides a vial so the flies wouldn't die and easily get caught in the food or foam.
