Sorry but it's hard to see
Answer:
cyanobacteria
Explanation:
Cyanobacteria /saɪˌænoʊbækˈtɪəriə/, also known as Cyanophyta, are a phylum consisting of free-living bacteria and the endosymbiotic plastids, a sister group to Gloeomargarita, that are present in some eukaryotes.
Either you have made error in your experiment or you might have wrong hypothesis.
Number 4 the answer is 1
Number 6 the answer is 3
Hope this helps :)
