Grex (biology)
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A grex is a multicellular aggregate of amoeba of the phyla Acrasiomycota or Dictyosteliomycota that can be formed when the amoeba run out of food. The grex can move as a unit and form a fruiting body, in which amoeba are differentiated into stalk cells and spore cells. The latter can be transported by wind or water a distance that is relatively great compared with what the organisms can achieve in their typical form; the former desiccate and die.
[edit] References
Zimmer, C. 1998. The slime alternative. Discoverer, 19(9), 86-93.
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