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What are the benefits and risks of protozoa?

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This has been sitting in my feed for a while, with no other takers, yet. So here goes. Protozoa are single-celled aquatic animals, some free swimming and many of which are parasitic, relying on ingestion by more complex organisms to acquire a favorable environment. read more

‘Benefits’ and ‘Risks’ imply some perspective, some basis for judgment as to the ‘worth’ of a creature. This concept may not be valid. It would seem that complex matter ingested by a protozoa as food would be reduced to a simplified molecular composition that might just be suitably simple for inclusion in cells of a multi-cellular plant destined to be consumed by a more complex animal. read more

‘Protozoa’, in fact, means ‘the first animal’. Even protozoans like Euglena, which contain chlorophyll and can photosynthesise, lack a cell wall. The others are either saprophytic or parasitic. read more

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