Unit 8 Reflection
Unit 8 This unit we really touched on how life evolved and split into all of the species on earth today. We have seen proof of this happening now and in the remnants of the past. For example we know that variation is what drives evolution and is in 4 forms: Crossing Meiosis Mutation Sex These determine what traits we have or if we will get a new trait. It can also make species able to adapt and survive in new environments. As humans we us this knowledge to breed animals that best fit our need like for: fighting produce bigger size This is called artificial selection and is what we used to make certain breeds of dogs or make chickens lay 1 egg a day. This method ha been used for thousands of years and can lead to many variants of many kinds of animals. We also learned how all populations are always evolving, including our own. Some of Darwin's Laws on evolution are that: Evolution is caused by natural selection. Many similar species can live together if ...