About me and Evolution

 My name is Abigail Decker, but most people call me Abby. I attend the OSU campus in Stillwater, OK and this is my senior year of college. I am studying biology, and I plan on attending a physician assistant program once completing my bachelor's degree. I have learned a lot from this week's opening material. One specific example that interested me was how long it took for photosynthesis to occur and oxygen to be present in earth's atmosphere. Even though earth is 4.5 billion years old, photosynthesis did not occur until 3.5 billion years ago, and 2.3 billion years ago oxygen finally started building up in the atmosphere. 

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