From plants because they give off oxygen so EVERYWHERE
Answer: You could use old documents to help you make new medicine.
Explanation:
Answer: Parasites are defined as organisms which live on or within some other living organisms deriving sustenance from it, the organism in which he lives is an host. A parasitic relationship is one in which one organism, the parasite, lives off of another organism, the host, harming it and possibly causing death.
Explanation: