Have living things always had an immune system? How did they survive / evolve to deal with diseases, and how does that compare to modern immune systems? Submitted by bruceleroy99 t3_zf4l29 on December 7, 2022 at 3:53 PM in askscience 29 comments 167
[deleted] t1_izf3xk8 wrote on December 8, 2022 at 5:25 PM Reply to comment by gsohyeah in Have living things always had an immune system? How did they survive / evolve to deal with diseases, and how does that compare to modern immune systems? by bruceleroy99 [removed] Permalink Parent 1
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