Can carbohydrate be used to create cell walls

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

What terms describes being out of water after being submerged

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?