How does Andrew Knoll's idea that “Prokaryotic metabolisms form the fundamental ecological circuitry of life; bacteria, not mammals, underpin the efficient and long-term functioning of the biosphere" relate to the nitrogen cycle?

Hey guys! this is not for school. i my dog gave birth a week ago and we are celebrating them today so i decided to give out a ton of points, a tnx and brainiest to whoever answers the following questions. 1. did you have a good day today. 2. do you like dogs (its okay if you don’t) 3. if you were an animal, what animal would you be? (i am just curious. i would be a unicorn.)