Which statement is the best example of trait variation?(1 point) Responses Researchers discover that gender in two new species of turtles is influenced by temperature. Researchers discover that gender in two new species of turtles is influenced by temperature. Researchers discover different mouth sizes in two new species of freshwater bass. Researchers discover different mouth sizes in two new species of freshwater bass. Researchers discover differences in leaf thickness between populations of a new oak species. Researchers discover differences in leaf thickness between populations of a new oak species. Researchers discover that high winter yield is possible in a new species of rice.

Researchers discover different mouth sizes in two new species of freshwater bass.