1) Corals contain, within their cells, photosynthetic dinoflagellates which help to feed the corals. 2) The protist Plasmodium, is a symbiotic parasitic protist which causes debilitating disease in humans. 3) Some protists live symbiotically in the guts of termites, allowing them to digest wood, which they could not otherwise do.
Work Step by Step
Review Concept 28.6 and choose three of the numerous symbioses described there, summarizing each of your choices briefly.