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Kingdom Protista * Protists belong to the kingdom Protista, which includes roughly uni cellular organisms that do non fit into any of the other kingdoms. Major characteristics * by and fully grown unicellular, but some atomic number 18 multicellular (like algae) * roll in the hay be autotrophic or heterotrophic * well-nigh live in irrigate (aquatic) * Many have a method of movement (but not all) * ALL are eukaryotes (have a nucleus) * Protista are divided up into 3 subkingdoms (subkingdoms are unofficial taxa that are narrower than kingdoms but broader than phylums) * The 3 subkingdoms are: animal-like, plant-like, and fungus-like Subkingdom phylum Protozoa (animal-like) * All protozoa are heterotrophs and they moldiness move about to collect food * They are classified into phylums establish on how they move ( change of location) Phylum Zoomastigina: Zooflagellates * Animal-like (heterotrophic) protists that m ove using flagella Phylum class class Sarcodina: Sarcodines * Sarcodines are animal-like protists that use pseudopods (cytoplasmic projections) for feeding and movement * Ex.

Amoeba * Lives in water * Very arcsecond shape (blob-like) * Moves using pseudopods ( off feet) which are extensions of the cytoplasm * Reproduce by binary nuclear fission (asexual) * Have a contractile vacuole deep down the cell and it removes excess water * Ingests food by surrounding and engulfing it (phagocytosis) * underside cause amebic dysentery in humans- diarrhea and an upset corporati on from drinking water contaminated with cer! tain types of amoeba expression: * Pseudopods- unstable projections of the cytoplasm that can be used for locomotion or feeding (defining characteristic of the Sarcodina phylum) * Ectoplasm- Outer contraceptive bottom of the cytoplasm that contains most of the structures. It is tougher and thicker than the endoplasm * Endoplasm- Inner layer of cytoplasm that contains most of the structures * Digestive food vacuole- food that is engulfed by phagocytosis is...If you emergency to arrive a full essay, order it on our website: BestEssayCheap.com

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