3 ms·
Plants and bacteria lack an immune system like the human‘s. Fully fledged immune systems with antibodies, T killer cells and B memory cells is something mammals
by G3rn0ti 5y ago
Plants and bacteria lack an immune system like the human‘s. Fully fledged immune systems with antibodies, T killer cells and B memory cells is something mammals „invented“.
- vinay427 5y agoYour point of course stands, but from what I can tell (as someone very much not an expert, i.e. glad to be corrected), the history of the adaptive immune system is far more continual and definitely precedes mammals, with the "fully-fledged" versions found in early vertebrates and some mechanisms preceding that as well. The abstract here seems quite well-written: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2919748/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2919748/