Until DNA evidence provided evidence to the contrary, flagellated spores were used to group the blastocladiomycetes with the .

Chytridiomycetes

Explanation:

Blastocladiomycetes were initially grouped under the phylum Chytridiomycetes within the fungi kingdom because the former also have flagellated spores just like the latter

The similarity in spores initially made scientists classify both groups as zoosporic fungi. However, DNA and structural analysis of the spores of the two groups showed that Blastocladiomycetes has no monophyletic relationship with Chytridiomycetes.

chemical weathering

explanation:

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