What happens after a mass extinction, such as an ice age or the extinction of the dinosaurs?

Which of the following is an advantage of solar energy?

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

What are the two functions of the respiratory system