This involves small scale changes within a community that occur repeatedly over the life of that community

What came first egg or chicken? and is tomato a vegetable or a fruit?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?