Which statement describes the evolution of the trait of an amniotic egg? 1. The trait evolved in an ancient ancestor of salamanders and was passed to lineages that lead to lizards and wallabies
2. The trait evolved in an ancient ancestor of lizards and wallabies and was passed to all of the ancestor's descendants
3. The trait evolved separately in a variety of ancient organisms, including an ancestor of lizards and an ancestor of wallabies
4. The trait evolved in an ancient species and was passed only to lizards and wallabies