Because humans eat both plants and meat
Mylenation - an insulator along the axon
Prokaryotes do not have a nucleus, rather the DNA floats freely in the cytoplasm. Also, prokaryotes are much smaller than eukaryotes, and are typically bacteria or eubacteria.
Eukaryotic cells have membrane-bound organelles and nucleus, and are larger than prokaryotes. Some examples of eukaryotes are plant and animal cells. Hope this helps! :)
