What is a monomer? what is a polymer?

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?

During binary fission, what events must occur before the cell splits into two new cells?

Number and variety of living organism; includes genetic, species, and ecological types