Most are immobile. A few eat insects for extra nutrients, such as the venus fly trap. These are heterotrophic organisms that develop from spores and have chitin in their cell walls. They are mostly immobile. Most are decomposers.
Examples are mushrooms, molds, and bracket fungus.
The protists are basically a miscellaneous category, with no defining characteristic. Some are autotrophs, some heterotrophs, and some are decomposers. They can be single celled or multi celled. Examples are slime molds, algae, protozoa, and ameobas. Also called prokayota, this kingdom includes bacteria and all prokaryotes.