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Animal-like protists, known as protozoa, are single-celled eukaryotes that share some traits with animals. Here are some key points about them:
Heterotrophic: Protozoa cannot produce their own food and must obtain it from external sources, often by engulfing other microorganisms or organic matter12.
Movement: They are capable of movement, typically using structures like cilia, flagella, or pseudopodia (false feet)23.
Diverse Forms: Protozoa come in various forms, including amoebas, ciliates, flagellates, and sporozoans12.Amoebas: Use pseudopodia to move and capture food.
Ciliates: Covered in tiny hair-like structures called cilia, which help in movement and feeding.
Flagellates: Use whip-like structures called flagella for movement.
Sporozoans: Typically parasitic and do not move as adults; an example is Plasmodium, which causes malaria12.
Protozoa play various roles in ecosystems, such as predators, herbivores, decomposers, and parasites2. They are essential in controlling bacterial populations and serve as food for larger organisms2.1biologydictionary.net2bio.libretexts.org3flexbooks.ck12.org4k12.libretexts.org5gettyimages.com— see less
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