Draggie, I did Biomedical Engineering at university. I decided not to go into the field directly after college (pursuing other interests like programming and wine), but might go back for a PhD at some point. I still keep up with bio research, but I may change my focus from biomedical to organismal or ecology.
I gave very clear examples of it being observed. Bacteria mutate and evolve in front of our eyes daily. Species adapt to changing environments. Finches are NOT variations of the same species as they can no longer interbreed, which is the definition of speciation (technically, the males will not be fertile, this is how cross-species hybrids like liligers can exist). If you try to get into Oxford in Biology and reject evolution, they'll laugh at you.
I'll avoid talking about genetic proof as that's much more complicated and requires knowledge that you likely have not received yet. I will also clear up some things spread by Christian propaganda (like truthinscience.org). I call it propaganda because they are blatant lies used to suit their agenda of misleading people.
1) Micro and macro-evolution do not exist. They are fabricated terms that are not used in science. Only creationist use these terms. Evolution is evolution.
2) Evolution is random. It does not have a direction or intention, nor is it smart. It is through natural selection that results in certain characteristics that are beneficial to the species. A side note because of my focus on Comparative Biomechanics: Nature is generally a decent designer, but not the most efficient or smart. The most efficient design would be unable to adapt to a slight change in environment. As such, animals will tend to have efficient enough, but still have leeway.
3) Speciation HAS, in fact, been observed directly: http://www.talkorigins.org/faqs/speciation.html http://evolution.berkeley.edu/evolibrar ... speciation
4) Evolution can take a long time or a short time, depending on the reproductive cycle. Bacteria and viruses change VERY fast because they have a short generational length. This is why you might catch the cold every year. This is why certain diseases are difficult to cure (like HIV). However, for longer living creatures, this also means that evolution is "slower."
5) Our bodies are definitely not "intelligently designed." We have a lot of stupid things that make no sense. The appendix is useless and actually detrimental if food gets caught in it. A fertilised egg can fall into the fallopian tube or cervix, causing an ectopic pregnancy. This can kill both the mother and child if it were not for modern day surgery. Other idiosyncrasies include how our sensor for suffocation is CO2 buildup, not lack of O2, so we will just pass out and die painlessly if we breathe pure nitrogen. We would only need 3 muscles to move our eyes, but we have six. I point the flaws on purpose, as they are leftover evidence of evolutionary working. As I mentioned earlier, evolution goes for what just works, not the best or most efficient approach.
6) Fossil gaps. Species don't change at a constant rate. Remember when I said evolution is random? It comes in bursts and then lulls. Due to how rare the conditions for fossils, it is understandable we don't have 100% of the fossil record of a specific line (I'm sure a high percentage is pretty acceptable). However, we have found so many of these transitional fossils. We have transitional fossils betweens dinosaurs and birds. We have vestigial limbs are also living proof. Why do some whales have nubs? They are leftovers from a common land mammal ancestor. This and many other examples are proof of descent from a common ancestor. We have clear fossil records of fish moving onto land, too. They're called lungfish, and they're still around.
We have been able to recreate organic compounds in "Early Earth Conditions." RNA has been formed with just the needed elements and heat. We have mitochondria in our cells that resemble bacteria, suggesting than organelles are prokaryotic cells absorbed into eukaryotic cells.
I know this isn't the most organised of arguments, but if you want more examples, I can literally write them all day. These are just the ones off the top of my head. A look in my textbooks will have hundreds, if not thousands more. And then there's the internet too. I'm not very well versed in plants, either, and they exemplify evolution evidence.
It's alright to say that you don't know any of this yet. Maybe your school hasn't gone over basic biology principles yet. I'm just trying to teach you just some of the most basic ideas. However, if you continue to deny evolution's evidence exists and fail to try to understand how biology works, I cannot help you. There is a reason why evolution is taught. Because it's fact, and we have all the life in the world to prove it.
Here's some more information from my uni, University of California, Berkeley. It is widely known as one of the most respected universities in the world, so if want to take a religious leader's word over it, that's your choice: http://evolution.berkeley.edu/evosite/evohome.html
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