Answer:
D. direct the building of different protein molecules
Explanation:
Pioneer species can decrease if other species move it out. If the pioneer species in a forest area is a type of bush, that bush might decrease in number as more species come in.
they are formed by layers of dead cells and is produced by the formation of multiple layers of suberized periderm, cortical and phloem tissue.
This is easy, the answer is: <span>Ø</span>