Question

Do you include Euglena under plant kingdom or animal kingdom? Discuss.

Answer 1

• Euglena is called plant and animal both.
• It has chloroplast, produce their own food by the process of photosynthesis like plants.
• But it lacks the cellulose in the wall, unlike plants.
• It has a flagellum which helps in spiral or forward locomotion as in animals (characterised by movement).
• It feeds by engulfing the food with its body in the absence of sunlight (mixotrophic nutrition).
• It has a light-sensitive eyespot as in animals.
• Yet it is neither placed in plant kingdom nor animal kingdom.
• It comes under the phylum Protista which includes unicellular eukaryotes.