Nitrogen fixation is carried out by nitrogen-fixing bacteria that live in the soil and roots of legumes, such as peas, making these bacteria an essential part of the what cycle?​

Australopithecus robustus was likely the longest-surviving species of australopithecine in south africa. it had: a. large molars, a big face, and a sagittal crest. b. a large body, large teeth, and a sagittal crest. c. a big brain, big teeth, and a big face. d. a big face, large teeth, and a large body