Amobeae Consuming the Spores of Harposporium - an Endoparasite of Nematodes
The helicoid spores of Harposporium lie around in soil and organic debris. They are attractive to nematodes as a food source. Nematodes consume the spores and these lodge in the oesophagus, germinate then parastize and consume the victims. Amoebae are also attracted to the spores and ingest them but they are not affected and digest them as food sources. You can see the ingested spores are breaking down inside the amoebae.
And thus is the balance of nature is maintained.