Yes, Some Have The Same Body Cells Some Have Different Body Cells.
i think it's contact, dynamic, and regional
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I think it would be that fish farming does not happen in the ocean environment therefore an excess of fish waste would not affect will fishes that humans consume. Another term for this is pisciculture. It involves growing fishes in tanks.
Fungi are effective decomposers, saprophytic fungi grow towards their food source, mycelia produce extracellular enzymes to digest food outside of hyphae, saprophytic fungi like miners: they blast away lignin to expose cellulose, fungi use other enzymes to degrade cellulose to glucose.
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