Dictyostelium discoideum is an unusual organism,one that straddles the boundary between the unicellular and the multicellular.Its feeding phase consists of individual amoeba-like cells that move independently,feeding on bacteria by phagocytosis.When the food runs out,cells begin to aggregate into a multicelled structure that migrates toward light.The cells differentiate into a base,stalk,and spores; only the spores survive to colonize a new habitat.Dictyostelium discoideum is which of the following?

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Dictyostelium discoideum is a type of slime mold, which straddles the boundary between the unicellular and the multicellular.

Dictyostelium Discoideum Is an Unusual Organism,one That Straddles the Boundary