Evidence of Evolution - Weekly Blog #7

https://nondiscovery.wordpress.com/2008/09/11/intelligent-design-lacks-evolutions-web-of-evidence/

Summary

This week in science, I learned about the evidence that we did, in fact, come from a common ancestor. The main evidence of evolution that we studied this week were fossil records, embryology, and comparative anatomy. With this data, I was able to learn how, and why we are all connected through evolution. This can be seen in our comparative anatomy by just looking at the skeletal structure of animals compared to each other. It shows that we all have very similar structures in different areas of the body. It is also shown that when developing, our embryology is also very similar to each others. The early stages of the process can be hard to tell apart. Finally, the fossil records show how we are connected through evolution by giving evidence that past organisms that resembled us may be signs of a common ancestor, and help fill gaps of knowledge between evolutionary lines.

S&EP - Using models

This week, we explored usage of models to help us understand how evidence in evolution can be found through fossil records. We did this by making a list of the "Adventurian" fossils starting in Cambrian era. It started as one type of fossil, but eventually branched off into grey heads, and white heads, and even further into different types of species as a whole. Through this exercise, using models helped me better understand how fossil records give evidence of evolution and help close gaps in evolution.

XCC - Stability and Change

This week, I saw the concept of stability and change present in our studies. I say this because when studying the Adventurian fossil record, I was able to see change in during each epoch. Every time that a new fossil is present, there is that sense in change present in the pattern of the fossils. It shows that the organisms had to have a sense of stability if they are evolving in such a way that can aid them in the long run. This can also be seen when comparing the embryology or skeletal structures of different animals. There has to be a sense of stability within the systems, and change depending on the organisms needs.