11. All heterotrophs depend on autotrophs for their nutrition. 12. The terms can be used to describe energy transfer in both autotrophs and heterotrophs . 13. The Betaproteobacteria are highly metabolically diverse and contain chemolithoautotrophs, photoautotrophs, and generalist heterotrophs . 14. Phototrophs can be either autotrophs or heterotrophs . 15. Most species of Difflugia are heterotrophs , feeding on organic matter or various prey organisms. 16. All animals are heterotrophs : they must ingest other organisms or their products for sustenance. 17. In either case, these two groups are the only heterotrophs known to form colonies. 18. Most opisthokonts and prokaryotes are heterotrophic; in particular, all animals and fungi are heterotrophs . 19. Some are leafless myco-heterotrophs . 20. Heterotrophs are organisms that must feed on others for nourishment and energy ( respiration exceeds production ).
