A student of lamarck saw that the wild pigs of the island of hoi polloi that had sharpened their tusks on large rocks were more successful at hunting and digging and so sharp tusk would be inherited by their offspring why is she incorrect

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems