1. This diagram shows how a certain organism can evolve over millions of years into something completely different yet have some certain similarities. The Mesonychid, in an attempt to find less competition on land, evolves to live in water where there are less predators and competition for it to survive. It still keeps certain structures similar however such as the one bone-two bone-many blobs structure that can be found in the mesonychid as well as in the Basilosaurus.
2.North America
3. Dragonflys, BIrds, and Bats all show analogous structures in their evolution because the bone structures found within them are completely different but the function of their wings are the same. To fly. These organisms, although do not have a common ancestor, all evolved a similar body part to help them preform a similar function
4. The common descent lab shows the different cytochrome C sequences of every animal. Cytochrome C controls the number of random mutations a certain animal has and when there are less differences between two organisms, that means they are related more closely. Humans and rhesus monkey, have only one difference in their Cytochrome sequences whereas Humans and horses, have around eight differences which is why they are less closely related than Humans and rhesus monkeys.
5. Homology is when there is a structure that is similar in many organisms. This is made possible because they all these organisms with the same structure came from a common ancestor who had the structure. For example, Humans have the one bone-two bone-many blobs structure as well as chickens and bats. They are all related from a common ancestor who began to have the one bone-two bone-many blob structure
No comments:
Post a Comment