Eli5 why plants which need nitrogen from the ground do not take it from the air which is 70% Nitrogen
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Because evolution is not a design. Why can’t animals photosynthesise? Why can’t mammals extract oxygen from water? Why do complex organisms not have the ability to asexually reproduce? Species evolve alongside each other and develop niches. Some evolve in high organic nitrogen niches. Others rely on symbiosis with nitrogen fixing bacteria.
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