Prokaryotic Cells
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Prokaryotes are a key part of animal digestive systems. A balanced community of prokaryotes in our bodies have a beneficial relationship, or mutualistic symbiosis, with the host animal and break down food while getting a place to live. Prokaryotic cells do not have a nucleus or other membrane-bound organelles. Instead, the cell’s DNA is suspended in the cytoplasm. All prokaryotes are microscopic single-celled organisms.