It is present in plant cells but not in animal cells
The circulatory system will make the heart pump faster, moving blood, oxygen, and nutrients around the body. the excretory system will excrete waste like sweat through the skin, maintaining a steady body temp.
Notice here that the original strand has 6 bases, but the new one only has 5. Therefore, it has to be a deletion. Precisely, the A in the first sequence was deleted, and you can tell, because there should be a U in the fourth spot.
I'm not sure about the first two but I think the one about the halite crystal is cubic. :)
