Hi There! :)
<span>Every atom of the blank carbon has 6 protons
</span><span>element</span>
Ocean currents can be generated by wind so I believe the answer is B
<span>b they could eat unicellar organisms
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Multicellular organisms arose because of the process called endosymbiosis. The endosymbiosis theory posits that other unicellular organisms ate other organisms which has benefitted them into processing new mechanisms and functions.
A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.