Blah-Blah-Blahs are very small than atoms. And they are carnivorous viruses. They eat human blood they eat plants and animals too. They can kill humans, animals, and plants. PLAY: Blah-Blah -Blahs can go on 9
The term worm is used in everyday language to describe many different distantly related animals that typically have a long cylindrical tube-like body and no legs. Worms vary in size from microscopic to over 1 metre.
These unicellular protists use hair-like cilia for locomotion and feeding. They are important to biomedical research and have contributed to our understanding of many cellular and biochemical processes.