Their difference is that Eukaryotes posses nucleus & nuclear bound organelles whereas prokaryotes doesn't!
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D. Enzymes and antibodies
C. Enzymes increase the rate of the chemical reactions carried out during metabolism.
A planarian can regrow any missing body part. Truth be told, in the event that you take a planarian and excise it into a few little pieces, every last one of those body sections can recover into an entirely different worm.