Go to biology.arizona.edu They have a ton of stuff on blood types. I don’t know if this will help because I’m not in biology yet but I’ve been there and it helped a lot with some stuff. Hopefully that didn’t sound to vague. Have a wonderful day.
False, atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes
Soil can cause a natural disaster by soil erosion
