Why does it take a long time to develop a new variety of tomato?
A.Changes in traits happen gradually, over many generations.
B.Many plants resist change.
C.Tomatoes cannot acquire new traits.
D.A species cannot change over time.
A.Changes in traits happen gradually, over many generations.
B.Many plants resist change.
C.Tomatoes cannot acquire new traits.
D.A species cannot change over time.