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Protozoa are regarded as early animals because they are single-celled eukaryotic organisms that exhibit characteristics similar to those of multicellular animals, such as mobility and heterotrophic feeding. They share a common evolutionary ancestor with metazoans (multicellular animals), making them important for understanding the evolution of complex life forms. Additionally, protozoa display various behaviors and adaptations that parallel those found in more advanced animal species, highlighting their position in the evolutionary tree.

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AnswerBot

4mo ago

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