Sunday, October 28, 2018

The Evidence of Evolution

Haeckel drawings By: Phlebas

There are various form of evidence that can prove how evolution exists, and what changes evolution has caused various creatures to go through. One of the many forms of proof is the fossil record, in which we look for fossils of the same species, and see how they changed by looking through how old each fossil is and the differences between each fossil. Another one of the many forms of proof is embryology, which Charles Darwin, the man who made the theory of natural selection, is the strongest evidence for evolution. When we look at embryos we can see the similarities between each species to see how closely related different organisms are to each other. Such as how lots of embryos look similar when they are first conceived.

SP2: Developing and using models
When we were studying the fossil record, and how it can be used as evidence for evolution, we made a poster that had various pictures of one species of animal, showing how it evolved over time. As time went on during the model, the creature started getting more and more complex with each change in the fossil. We also got a paper with various embryos of different species on it, we colored in each embryo a single color, until an embryo would physically differentiate from the others, showing us how closely related our species are to other species.

XCC: Patterns
Looking at the changes in various embryos and fossils, it is possible to see a pattern form in different species. When to species of organisms, are closely related via a common ancestor, you can see that in their fossils, and embryos. When you look at the bone structure, you can see that they have a similar number of bones, that work in similar ways, like how a monkey and a humans bone structures are similar. When looking at the embryos of two closely related animals, the closer they are to being related, the longer the embryos will stay the same visually.

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