<span>Air pollution is the presence of harmful substances in the earths atmosphere </span>
30% and 70% dont usally suffer from excess bleeding
Answer:
Cell differentiation
Explanation:
Cell differentiation is common with multicellular organisms. It is the process by which a cell changes from one cell form to another. Cell differentiation makes the change from a zygote to a complex system with different parts.Cells which have been differentiated also becomes specialized. Complex multicellular animals and plants would not be in existence without specialization. This is because cells have specialized functions and each cell is very important to the survival of the organism.
Answer:
A
Explanation:
ishfsgisiydgkskgskgskgzgkd
