<span>Based on the
cladogram, mackerel has segmented body and jaws. They have vertical stripes on
their backs and fork tails. In addition, mackerel is a multicellular species of
pelagic fish, which were restricted in their distribution ranges and live in
separate populations.</span>
The liver creates bile, which help break down lipids.
An atom can be an ion, but not all ions are atoms. The difference between an atom and an ion has to do with net electrical charge. ... The identity of an element is determined by the number of positively charged protons in the atom's nucleus. A stable atom contains the same number of electrons as protons and no net charge.
I hope it helps, I tried to keep it as concise as possible.