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Specimen
071
This is clearly Paramecium bursaria, due to the Zooclorella algae that is present in the cell. However, P. bursaria is usually ovoid and elongate in shape and not kidney-shaped like this cell. It could be possible that this is because the cell is undergoing binary fission. Binary fission is when a single organism splits into two parts, producing two individual organisms. All ciliates reproduce by binary fission. During fission, the macronucleus splits by a type of amitosis, and the micronuclei undergo mitosis. The cell then divides transversally, and each new cell obtains a copy of the micronucleus and the macronucleus. |