Which of the following was necessary for the evolution of ground finch beak sizes on Daphne Major (one of the Galapagos Islands)? Mark all that apply
Available seed sizes had to change over time
Beak size is a heritable trait
Beak size had to change during growth
Individuals with smaller beaks had to grow larger beaks during drought years
Some beak sizes are more suited for small seeds and some are more suited for large seeds