Euglena are protists that contain photosynthesizing chloroplasts. they can also engulf and absorb organic molecules. how would euglena be categorized based on their metabolism

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.