Rotifers are a phylum of microscopic and small aquatic animals found in both marine and freshwater environments. They possess a rotating crown of cilia used for locomotion, feeding, and gathering food particles. Rotifers exhibit diverse morphologies including globular, elongated, and sac-like shapes. They are primarily omnivorous, filtering small particles from water, but some species are carnivorous, capturing prey using specialized jaws and trapping mechanisms. Rotifers reproduce asexually through parthenogenesis or sexually, producing haploid or diploid eggs depending on the class. There are three main classes that differ in their reproductive strategies and morphology.

1. PHYLUM ROTIFERA Philodina

5. PHYLUM ROTIFERA Variety of form in rotifers