Answer:
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Explanation:
The stereotype is that all australians are some sort of zookeepers? and wear clothes like that. also that they drink beer a lot.
Answer:
c) Habitat isolation
Explanation:
Habitat isolation is a mechanism that prevents species from mating even if they don't have reproductive barriers. The differences in the habitat types may thus be sufficient to develop reproductive isolation between two (or more) populations
In the world's oceans 90% of the biomass is microbial with viruses turning over 20% of that daily. without the turnover of biomass driven by viruses many sources of food would not be present for other organisms