[[G11 Pre-AP Biology]]
Characteristics:
* Mainly unicellular
* Under Eukarya domain.
* Eukaryotic cells.
* Reproduces sexually and/or asexually.
* Diverse, not closely related.

Classification:
* Animal-like (protozoans):
	* Heterotrophs.
	* Can move.
* Plant-like:
	* Autotrophs, can photosynthesize.
	* Photoautotrophs.
	* Some are capable of consuming other organisms when light is unavailable.
	* Can be unicellular or multicellular.
* Fungus-like:
	* Absorbs nutrients from other organisms.
	* Heterotroph/decomposers, outer digestion.
	* Cell wall is not chitin.
	* Examples are slime moulds and water moulds.


| Phylum        | Characteristics                                                                                        | Example                             |
| ------------- | ------------------------------------------------------------------------------------------------------ | ----------------------------------- |
| Cercozoan     | Pseudopods, temporary cytoplasmic extension for movement/feeding.                                      | *Amoeba proteus*                    |
| Cilliophora   | Cilia, short hair like extensions for sweeping food or movement.                                       | *Paramecium caudatum*               |
| Zoomastigma   | Flagella, long tail like whip.                                                                         | *Trichonympha*                      |
| Sporozoa      | Vector, uses living organism to transmit infection from one organism to another. Parasitic to animals. | *Plasmodium vivax* (causes malaria) |
| Myxomycpta    | Many nuculei, engulfs like amoeba.                                                                     | Plasmodia                           |
| Acrasiomycota | Individual amoeboid cells, one nuculeus.                                                               | Cellular slime mold                 |
| Oomycota      | Filamentous, resemble fungi, release enzymes to absorb nutrients.                                      | *Water mold*                        |
Paramecium:
* Cilia.
* Asexual (binary fission/sexual.
* Gullet.
* Outer protein covering.
* Lives in water.
![[Pasted image 20260924105000.png|371]]
Amoeba:
* Pseudopods.
* Extension of cytoskeleton.
![[Pasted image 20260924105030.png]]
Euglenoids/Euglena:
* Plant-like protista.
* Flagella.
* Unicellular.
* Capable of ingesting nutrients.
![[Pasted image 20260924105525.png]]