Chlorella algae. Light micrograph of Chlorella vulgaris, a unicellular green alga which inhabits freshwater ponds and lakes. The non-motile, globular cells may be solitary or aggregated into groups. Chlorella reproduces asexually by dividing into four daughter cells or spores, as seen here. The daughter cells will eventually break out of the mother cell's cell wall. Magnification: approximately x2000 when printed 10cm wide.

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