Euglenoids are unicellular organisms whose classification as plants or animals can be debated equally either way. They exhibit both plant and animal characteristics. They are not related to any algae, but because they occupy the same kinds of habitats as algae and are of comparable simplicity, they are included in this study of algae. Zoologists include them in studies of single-celled animals known as protozoa.
General facts about euglenoids are
Pigments: Green; a few are colorless - chl a + b and carotenoids
Habitat: Marine & Fresh water
Body types: Single cell