What is the key to maintaing water purrification services?

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

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?

Which type of stimulus do mechanoreceptors detect? sound pain heat light