Downfolds are calles synclines. B is the correct choice.
Answer:
I think it is called selective breeding, I don't think it is called that but hope this helps
everything except for the carrots, trees and the ocean picture of algae is under heterotrophs
Totipotent cells can differentiate into more types of cells
Answer:
Many people with blood cancers, such as leukemia and lymphoma, sickle cell anemia, and other life-threatening diseases, rely on bone marrow or cord blood transplants to survive.
Healthy bone marrow and blood cells are needed in order to live. When disease affects bone marrow so that it can no longer function effectively, a marrow or cord blood transplant could be the best treatment option; for some patients it is the only potential cure.
Explanation: