Euglena is a unicellular organism classified into the Kingdom Protista.
All euglena have chloroplasts and can make their own food by photosynthesis.
Euglena is found in freshwater―a pond or a swimming pool.
Euglena moves towards the light, i.e. phototaxis due to the presence of photoreceptors in the eyespot, which detects the light and helps it moving towards it.