Hypothesis For Fruit Fly Lab

Therefore there was a recorded 8 birds, 1 dove, 5 magpie goose and 2 pacific black duck, 3 weeks after the floods. By 2017 the total of 8 birds, 3 species have now increased to a total of 25 birds, 6 species in 4 years. Though this being said many of the birds are ‘new’ to the area such as the 15 Cotton pygmy Geese and 4 recorded Dusky Moorhen. 6 bird species were seen/recorded in 2017, these being the 2 Black cormorant, 1 pacific black duck, Cotton pygmy, Dusky moorhen, little egret and willie wagtail. Other bird species such as the magpie goose which had a number of 41 recorded in 2009, 5 in 2013 and now 0. This indicates that the diversity of birds and population has decreased as a result of their habitat loss and or an a adequate supply of food.

The small percent error tells us that our group was not too far off with our method of finding out the number of beans in the jar. Our reason for error would be not having a wide enough range for bean weight. With a small range of bean weight, we were not able to completely calculate the best average for a weight of a bean. This estimate of average bean weight is what caused our estimate to be close but still incorrect. Our method of finding our estimate of beans were like other teams. All the other teams used mass to try and figure out the estimated number. The other teams percent errors were 2.49% , 7.36% and 5.07% most teams found the average weight of their beans sample and used it to determine the number of beans. To continue, one idea for improving our results is instead of using the mass method, use the volume to figure out the number of beans. I would also try and improve our method by using a larger range of single bean weights. This wider range would provide a more accurate average weight of a

Keeping the experiment isolated on the focus of body size is as simple as not changing any other variables concerning the experiment. Therefore, predator number, predator size, habitat type, and any other possible variable in the experiment that is not body size will be kept as consistent and identical throughout the groups and replicable tests as

Throughout this experiment a number of random and procedural errors were apparent; these errors could have affected the results of the experiment in a number of ways. One experimental error that occurred during the experiment was that some flies became stuck in the food source and died. The main cause of this was the fact that the fly vials were stood up (vertically) before the flies had fully recovered from the anaesthetic. This could be overcome in future experiments by ensuring that the vials are kept horizontal until all of the flies fully recover from the anaesthetic.

The parents are both homozygous. The homozygous dominant would represent the wild type. And the homozygous recessive would represent the other fly parent of a different strain. The F1 generation would consist of 100% Wild Type but they would all be heterozygous in carrying the recessive gene.

Introduction: The intention of this lab was to gain a better understanding of Mendelian genetics and inheritance patterns of the drosophila fruit fly. This was tasked through inspecting phenotypes present in the dihybrid crosses performed on the flies. An experimental virtual fly lab assignment was also used to analyze the inheritance patterns. Specifically, the purpose of our drosophila crosses is to establish which phenotypes are dominant/recessive, if the traits are inherited through autosome or sex chromosomes and whether independent assortment or linkage is responsible for the expressed traits.

As a group, we did an experiment of billbug and what kind of water they enjoy to stay. Our team was used for experiment sugar water, salt water and plain water. We measured the material we wanted to use. We used salt for 2.0 g. We used sugar for 2.0 g. and we used plain water for 10 ml. We mixed 10 ml of plain water into 2.0 g of sugar and 10ml plain water into 2.0 g of salt. We placed one tissue for each chamber. We dropped in chamber one the salt water. We dropped chamber two the sugar water. We dropped chamber three the plain water. In the middle of the chambers we placed filter paper. Then we put 5 billbugs and let them free to move anywhere they wanted. After 5 minutes we recorded how many billbugs are on each side of the chamber. We

The purpose of this experiment was we were trying to see if the number of arthropods would be significantly different in sparse and dense areas of the woods. Ms.Ehnert provided us with the design of a trap to set up in the woods so we could more actually count the amount and types of bugs that we find. The trap was a cup filled with anti-freeze that we put in the ground and then covered it with a paper plait, but raised it so bugs could get in and bigger animals couldn’t. We waited for a week to collect the results and then counted all of them and sorted them. My hypothesis was based off of common sense, the simple assumption that less trees equals less arthropods and more trees equals more arthropods. I knew that living things need a habitat

That is why people encourage scientists to analyze their entire experiment before they go through with it. Scientists should also be able to justify the use of a number of animals in a specific experiment.

For the dark environment we cut out a sheet of black paper and taped it to the top of the observation chamber, for the light environment two flashlights were above the chamber. A funnel was used to put the bugs in the middle and keep them there until the timer was started. After thirty seconds when the pill bugs were released our group counted how many bugs were either in the neutral, dark, or light section of the observation chamber this is how the data was collected. This experiment had two trials, so the data, that was collected during both trials were averaged out. During the second experiment that was conducted the pill bugs were once again placed in the middle of the observation chamber with the funnel, but this time one section of the chamber had soil with three drops of water, while the other section of the chamber had soil with 3 drops of vinegar. Once thirty seconds had past after the bugs had been released each member of the group counted how many bugs were on each sections of the chamber. This experiment was done twice and then the data was averaged out the data. This method of collecting data was chosen because this was the simplest and most efficient way of collecting

Heterozygotes, which have the wild type phenotype, have normal sight which gives them the advantage of finding a mate and have a better success with attracting a mate with their courtship song (Kyriacou et al, 1978). The male heterozygous Drosophila had a better advantage at mating than the homozygotes, which were the ebony, and therefore we predict there will be more wild type by the end of the experiment.

7. At the end of the lab, share your data with the class and add up the number of prey killed.

Description of Experiment:In this experiment to test the effect of colder temperatures on goldfish respiration rate.We started with a beaker

Some larva containing vials had hatched into flies. Counting of the flies began at this point. As flies started to grow, at different rates for each vial, with in the first seven days after all larva had hatched the flies were counted. The procedure was done according to theDrosophila manual (45-2620)

In order to control the experiment scientist split the species and placed them in a artificial diet (Hills) and in a environment rich in cotton (Delta) which allowed them to collect data such as the reproductively rate and the ability to develop.