Sunday, March 6, 2016

Bird beak analysis






Hypothesis (claim)
Evidence of this occurring
Explanation of this evidence
Individuals with better traits leave more offsprings

The bird with better beak picked up more food and got more offsprings
This happened because it was easier for them to get more food
Populations begin to look
more like the winners

The best bird beak gets their genes passed on and wins they then win over the other birds with other beaks
The best beak gets passed on because they can survive and provide food for themselves and their offsprings


Conclusion
In this lab we asked the question, if natural selection occurs in a population, how do changes in selective pressures affect the evolution of that species. We found that during the changes of the climate some birds didn't survive as well in that new climate as other birds. Evidence for this is that before the climate the spoon beak bird got more food but after the climate change the binder clip got more food and had more offsprings. This data supports our data because we said that the birds with the biggest beaks would get more food which happened.

While our data was supported by our data, that the big beaked birds would get more food there could have been errors due to miscounting on the food items. Which could have caused one bird to get more food then the others when it didn't and could have messed up all the data. Another mistake could have been that we didnt place the food evenly spread out on the table. And this could have caused another bird to have a easier way to get more food then the others and the data would not have been fair. Due to these errors, in future experiments we could have counted twice the number of food items and spread the food out more evenly.

This lab was done to demonstrate how a small change in climate or anything else could effect a species greatly. From this lab I learned that we shouldn't disturb other species which helps me understand the concept of different habitats and species. Based on my experience from this lab I could put this into many situations for example when you are out hiking or just out in the forest or ocean.






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