C. Nutrition absorption
Because fungi are unable to photosynthesize like plants so they must attach themselves to decomposing, dying, living organisms in order to flourish.
Vaccine, bacteria, pathogens, cells, toxins, antibiotics. In that order vaccine being first
Archea are prokaryotes, but their cell walls are chemically different from bacterias.
Archea often live where NOTHING else can such as hot springs and in extremely acidic or salty habitats.
And some molecules in archea aren't found in other living things.
The perching birds would be forced to migrate to another area.
Yes, this is not a good answer to use