What types of microorganisms are suitable for use in Australian school science laboratories?

What types of microorganisms are suitable for use in Australian school science laboratories?
Licence to purchase chemicals: Hi - I've had a few Year 11 students (Occ Health & Safety topic) ask about licences for chemicals held in schools, specifically the Science Dept.
Dissecting cane toads in WA: Could you please advise on the status of importing cane toads into WA as preserved specimens.
Plant ecology - oxygen-producing plants: What aquatic plants are legal to use for photosynthesis experiments in Australia, in particular Western Australia?