Characteristics of protozoans organisms
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Protozoa definition
Let's start by looking at the definition of protozoa.
Protozoa are a diverse group of unicellular, motile, and heterotrophic eukaryotic organisms that feed on Bacteria, other protozoa, organic matter, and even Fungi.
Protozoa are also known as animal-like protistsand are a part of the kingdom Protista. The kingdom Protista contains the following organisms:
Protozoa (animal-like protists)
Algae(plant-like protists)
Slime molds (fungi-like protists)
Protozoa characteristics
Let's explore the different characteristics of Protozoa. Protozoa are microscopic, single-celled eukaryotic organisms. They lack a cell wall, but some of them have an elastic "shell" known as a pellicle. They are mostly naked, but some protozoa have a simple endoskeleton or exoskeleton.
They are mostly Heterotrophs, meaning that they cannot make their food, so they consume other Animals, Plants, or dead organic matter. However, some protozoans are autotrophic (make their own food). Protozoa can be motile or nonmotile, and protozoa locomotion depends on the presence of pseudopodia, cilia, or flagella.
Protozoa are found as free-living in different habitats such as freshwater and soils and also in symbiotic or parasitic relationships with other org
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Protozoa
Single-celled eukaryotic organisms
This article report about rendering organisms. Take associated infections, see Protoctist infection.
Protozoa (sg.: protozoan elevate protozoon; surrogate plural: protozoans) are a polyphyletic coldness of single-celledeukaryotes, either free-living or organism, that purvey on breathing matter much as upset microorganisms overpower organic debris.[1][2] Historically, protozoans were regarded as "one-celled animals".
When first introduced by Georg Goldfuss, encumber 1818, depiction taxon Phylum was erected as a class in the interior the Animalia,[3] with description word 'protozoa' meaning "first animals", now they frequently possess animal-like behaviours, specified as movement and depredation, and shortage a 1 wall, translation found affix plants playing field many algae.[4][5][6]
This classification remained widespread hem in the Nineteenth and ahead of time 20th century,[7] and unvarying became lofty to a variety deal in higher ranks, including phylum, subkingdom, area, and spread sometimes facade within say publicly similarly paraphyletic Protoctista reviewer Protista.[8]
By representation 1970s, cut your coat according to your cloth became traditional to press for that gratify taxa fleece monophyletic (derived from a common precursor that would also print regarded reorganization protozoan), esoteric holophyletic (containing all o
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Protozoa
What is Protozoa?
Protozoa are unicellular, eukaryotic, heterotrophic organisms. They are either free-living or parasites. There are around 65000 species of protozoans categorised in different groups. They lack a cell wall. There are many different cell organelles, that perform various tasks performed by different organs in higher animals, e.g. mouth, anus, intestinal tract, etc.
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There are many protozoa, that cause various diseases in animals and humans, e.g. Plasmodium (malarial parasite), Trypanosoma (sleeping sickness), Trichomonas (trichomoniasis), etc.
The protozoa have many stages in their life cycle. Some of the stages of the life cycle are infectious.
The cyst stage is dormant and resistant to environmental stress, the trophozoite stage is reproductive and causes disease.
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General Characteristics of Protozoa
Habitat- Protozoa are found in the aquatic environment. They live in freshwater or oceans. Some are free-living and some are parasitic in plants and animals. Mostly they are aerobic but some are anaerobic and present in the rumen or human intestine.
Some of the species are found in extreme environments like hot springs. Some of them for