In the laboratory, you are trying to identify which fungal lineage a particular fungus belongs to. You examine many different cells from the individual, and notice that some are flagellated and motile. Into which group do you place the fungus?

Chytrids

Explanation:

Chytrids also known as Chytridiomycota are saprotrophs and have chitin cell wall and a posterior whiplash flagellumChytrids reproduce with zoospores that are capable of active movement through aqueous phasesFor most members of Chytrids asexual reproduction occurs through the release of these zoospores derived through mitosisIn some members, sexual reproduction is achieved through the fusion of isogametesChytrids are coenocytic with no distinction between individual cellsThe filaments are long and tubular with a cytoplasm lining and large vacuole in the centerThese single-celled organisms have branching hyphae with rhizoids