The correct answer will be “Biological Evolution”
Littering, hunting specific endangered species, honestly there are tons of things so the easiest one would be littering because if animals eat certain things it can kill them.
Answer:Autoimmune hemolytic anemia. Known as AIHA, this condition occurs when the immune system creates antibodies that destroy red blood cells. Because red blood cells carry oxygen to the body's tissues, AIHA can result in a reduced amount of oxygen in the body.