Answer: All the above are true.
Explanation:
Fungi are eukaryotic organisms that are non motile and non vascular. They reproduce by spores. They have cell walls made up of chitins,some are unicellular while some of muiticellular i.e they form hypae. They are heterotrophic or non photosynthetic. Fungi are important decomposers they can breakdown organic materials like lignin, chitin e.t.c.
Zygomycetes are group of fungi that produce large asexual spores bearing bodies like mushroom.
Cytrids form mutualistic relationship with Cyanobacteria or algae. The smallest part of fungus body is the mycellium.