RE: Apollo 17 - history
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Of course I know it! their videos of immune system are amazing to teach!! That is a very complex topic in biology since it has different molecules and cells in each step and what they did are amazing!! They have a book selling about the topic which I was curious to have it! Also their video about earth evolution from the beginning to know which every second is thousands of years is amazing too!
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It amazed me the video about how tattoos work, I had no idea they were so bad and heavy for the body... More reasons not to do them