what are protozoans? Explain in detail.
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Protozoans are single cells micro organisms of a group of phyla of the kingdom protista such as sporozoan, amoeba, ciliate and more.
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Your answer is...
Protozoans are single cells micro organisms of a group of phyla of the kingdom protista such as sporozoan, amoeba, ciliate and more.
Hope it helps
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Protozoans -
- They are a type of Protista.
- Protozoans are said to be heterotrophic.
- They are either predators or parasites.
- They are believed to be primitive relatives of animals.
- The four major groups of protozoans include Amoeboid, Flagellated, Ciliated and sporozoans.
Amoeboid Sporozoans -
- They live in freshwater, sea water or moist soil.
- They move and capture prey by pseudopodia.
- The Marine forms of amoeboids have silica shells on their surface.
- For example : Amoeba.
- Some are parasites, like : Entamoeba.
Falgellated Sporozoans -
- They are free living or parasitic.
- They have flagella.
- Parasitic form of Falgellated sporozoans cause diseases like sleeping sickness.
- Eg : Trypanosoma.
Ciliated Protozoans -
- They are aquatic.
- They are more active by using cilia.
- They have a cavity called gullet that opens to outside.
- Due to movement of cilia, water with food enters into gullet.
- Eg : Paramecium.
Sprozoans -
- They are infectious spore like stage in the life cycle.
- Eg : Plasmodium (malarial parasite) which causes malaria.
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