Answer:
Mitochondria
Explanation:
Mitochondria is the cell's "powerhouse" it creates atp, or energy.
Heterocyst-forming Cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament.
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If it has a cell wall, it most likely is not a eukaryotic, or animal, cell. Plants, bacteria, and fungi, have cell walls however.
They both carry blood to parts of the body as well as carry nutrients and oxygen.