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Euglena can be both heterotroph and autotrophs but algae can be only autotroph. Euglena act like herotroph when sunlight is not available.
Some members of the kingdom Protista are the amoeba, paramecium, euglena, rotifers.
Euglena are unicellular organisms which are sensitive to light. They respond to light via their pigmented eye spot located on the top of the organism.
you mean unicellular organism then we have following organisms which are formed of only one cellAmoebaParameciumEuglenaPlasmodium etcthey all are unicellular eukaryotic organisms and prokaryotic organisms include bacteria and cyanobacteria
Euglena Trachelomonas Phacus
because eugleana is hard to classify
Cladocerans, or "Water Fleas," eat euglena.
There are almost 800 species of Euglena currently known by scientists. This contains approximately 44 genera. Euglena is a genus of unicellular protists.
because Aristotle had a system to classify organisms on earth that only included plants and animals like human beings. The reason why euglena would have been hard was because it is capable of photosynthesis, which is natural for a plant type organism, but it was also capable of moving which was not something that plants would do but something humans or animals would do.
Euglena
Euglena
While some autotrophs are categorized by some scientists as protozoans e.g., Euglena, most consider protozoans to be those single-celled organisms that are heterotrophic.
ameba , euglena
ameba , euglena
amoeba euglena
I think the answer could be both spirogyre and euglena move by using flagella
The disadvantages of euglena are mostly related to its structure and the fact that there is a debate that never ends on whether it is a plant or animal. The lack of routine genetic analysis is the main disadvantage.