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The trophozoite is now large and full-grown, and has become rounded and ready for schizogony.

But the trophozoite forms only superficially resemble amoebas; their DNA tells us they are something much different indeed.

In such cases, there is absolutely nothing to indicate the “double” nature of the growing trophozoite, but the presence of the two nuclei which remain quite distinct.

More than two spores, generally very many, are produced typically by each individual trophozoite.

Correlated with the advanced degree of parasitism, there is a complete absence of specialization or differentiation of the cell-body, and the trophozoite is quite incapable of any kind of movement.