Why do oxygen and carbon dioxide move in and out of a plant during the day? A. Because the plant is only photosynthesizing
B. Because the plant is both respiring and photosynthesizing
C. Because the plant is only respiring
D. Because the plant is neither photosynthesizing nor respiring

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