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[[G11 Pre-AP Biology]]
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Characteristics:
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* Mainly unicellular
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* Under Eukarya domain.
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* Eukaryotic cells.
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* Reproduces sexually and/or asexually.
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* Diverse, not closely related.
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Classification:
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* Animal-like (protozoans):
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* Heterotrophs.
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* Can move.
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* Plant-like:
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* Autotrophs, can photosynthesize.
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* Photoautotrophs.
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* Some are capable of consuming other organisms when light is unavailable.
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* Can be unicellular or multicellular.
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* Fungus-like:
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* Absorbs nutrients from other organisms.
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* Heterotroph/decomposers, outer digestion.
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* Cell wall is not chitin.
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* Examples are slime moulds and water moulds.
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| Phylum | Characteristics | Example |
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| ------------- | ------------------------------------------------------------------------------------------------------ | ----------------------------------- |
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| Cercozoan | Pseudopods, temporary cytoplasmic extension for movement/feeding. | *Amoeba proteus* |
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| Cilliophora | Cilia, short hair like extensions for sweeping food or movement. | *Paramecium caudatum* |
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| Zoomastigma | Flagella, long tail like whip. | *Trichonympha* |
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| Sporozoa | Vector, uses living organism to transmit infection from one organism to another. Parasitic to animals. | *Plasmodium vivax* (causes malaria) |
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| Myxomycpta | Many nuculei, engulfs like amoeba. | Plasmodia |
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| Acrasiomycota | Individual amoeboid cells, one nuculeus. | Cellular slime mold |
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| Oomycota | Filamentous, resemble fungi, release enzymes to absorb nutrients. | *Water mold* |
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Paramecium:
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* Cilia.
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* Asexual (binary fission/sexual.
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* Gullet.
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* Outer protein covering.
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* Lives in water.
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![[Pasted image 20260924105000.png|371]]
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Amoeba:
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* Pseudopods.
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* Extension of cytoskeleton.
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![[Pasted image 20260924105030.png]]
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Euglenoids/Euglena:
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* Plant-like protista.
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* Flagella.
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* Unicellular.
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* Capable of ingesting nutrients.
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![[Pasted image 20260924105525.png]]
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