Answer:
Euglena
Explanation:
Euglena has both plant and animal-like features. It has flagella for locomotion and lives in the water, and feed upon eating organic matter present in the water. This makes him more like an animal.
On the other hand, it also has chloroplast that helps the organism to make its own food as well. It has been believed that Euglena engulfed green algae (endosymbiotic theory) and later made it as its own part.
PS: According to this theory of evolution, a prokaryotic cell ate another prokaryotic cell and developed symbiosis instead of using as a food source.
