Firstable,l am surprised by this tiny worm's complex organ.lf l don't cut it out,l can't image how a little earthworm even contain so many things.Then,l realize its respiratory organ is just its mouth.lts brain is also kind of small if you compare it to its body.lts intestine is not very long.lts heart is vary from human by stay in the center of its body.At last,its anus is at the tip of the body surpised me as well.
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