Protozoa
- Unicellular organism
- There are about 40,000 aquatic species
- They normally move and feed on other micro organisms.
Fungi
- Simple non-green plant which are not photosynthetic.
- Has a heterotrophytic nutrition. ie.parasitic or saprophytic
- Display a symbiotic relationship with algae of lichens
- Some fungi may exist as mushrooms and virus moulds..
- These have a multicellular filamentous structure called mycelium.