Select all the correct answers. giraffes with short necks lived in arid regions and fed on grasses. over time, grasses disappeared, forcing giraffes to eat from trees. mutations in thegenome leto some giraffes inheriting the trait for long necks. over time, there were more giraffes with long necks in the region. what are the twoteasons for the change in the population of giraffes? adaptationartificial selection2.0natural selectionoanalogous process of edmentum