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Question 5 1 pts Which of the following statements concerning birds or pterosaurs is FALSE? While much of a bird's wing is supported by its arm bones, the bulk of a pterosaur's wing was supported by a single elongated digit. Although flying birds tended to replace pterosaurs over time, the largest birds have never matched the size of the largest pterosaurs. If birds exhibited more parental care than pterosaurs did, it might have given birds a competitive advantage during times of stress. Pterosaur wings were largely formed of a membrane with stiff supporting fibers, while feathers make up most of a bird's wing area. Although pterosaurs could fly, they were not as well designed for flight as birds are, so they were quickly replaced when birds arose