Which of the following organic molecules contains a free carboxyl group on its hydrolysis ?

1-Phospholipids and polysaccharides.

2-Phospholipids and proteins.

3-Polysaccharides only.

4-Proteins only.

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

In which layer do organisms on earth love?

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?