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Transcript of Unicellular Organisms
Unicellular organisms (also called micro-organisms) must be able to feed, digest, excrete, and reproduce.
Three classifications of unicellular organisms:
They are among the most primitive and plentiful organisms on Earth. They are prokaryotic cells meaning they have no nucleus.
Unicellular organisms that are neither plants nor animals. They can be divided into two groups.
1) Plantlike Protists: They are not true plants, but do contain chlorophyll and produce their own food through photosynthesis.
2) Animal-like Protists: They have the same organelles as animal cells and they cannot make their own food. They have a contractile vacuole.
Consist of a wide variety of organisms, both multicellular and unicellular.