Answer;
-Mixotrophs
Euglena would be categorized as mixotrophs based on their metabolism.
Explanation;
-Mixotrophy is the ability of an organism to be autotrophic and heterotrophic at the same time. Therefor an organism that can survive in water as a chemolitho-autotroph and, at the same time, is capable of ingestion and digestion of organic compounds from human blood, is called a mixotroph.
For example; Euglena is a mixotrophic organism because it is both holophytic; since it produces her own food through photosynthesis in chloroplasts, and also a heterotrophic organism because it absorbs elaborated food, i.e. biotic products.
