Answer:
D
) ratio of neutrons to protons in each element.
The Chondrichthyes are the cartilaginous fishes including the sharks, rays,<span>skates and chimeras. The Osteichthyes are the bony fish. Both of these groups </span>became established during the Devonian Period about 400 million years ago. The Chondrichthyes <span>differ from the Osteichthyes in many respects, including their</span><span>
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Carbohydrates are a source of quick energy (ex: sugars, starches) and are made up of monosaccharides, while proteins determine how your body looks and functions and are made up of amino acids.
I'm really not sure but i think that its law because look at the LAW of gravity and it shows how gravity pretty much works
