The unique characteristic of the kingdom Protista is that Protists are primarily single-celled organisms. Therefore, the most relevant response would be: Protists are single-celled.
What makes the kingdom Protista unique?(1 point) Responses Protists are not made of cells. Protists are not made of cells. Protists share a common ancestor with fungi only. Protists share a common ancestor with fungi only. Protists do not share a common ancestor. Protists do not share a common ancestor. Protists are single-celled./
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