Humans belong to domains eukaryota. The domain includes four of the six kingdoms in life: Protista, Fungi, Plantae and Animalia. The other two domains are Archaea and Bacteria.
Answer:
Iron, Magnesium, and Nitrogen
That would be the independent variable :)
I believe it is the pacific ocean as that is the ocean where the Mariana Trench is located, and the Mariana Trench is the deepest place in the Oceans
I think maybe the nephrons ...but not sure...
