Yes

No

Yes

No

Microorganisms grew bigger in size on day 5

Microorganisms became visible after multiplying and growing in numbers

The growth is visible so there are no microorganisms in the petri dish, it's something else

Microorganisms can not be seen by the naked eye

Microorganisms are even more visible because they keep multiplying and growing in numbers

Some sort of growth but not microorganisms because they are visible

They are geting bigger in size and becoming a multicellular organism

Microorganisms had to be present on day one, otherwise there shouldn't be any growth

NO, they were not present. They started growing on day 5

They were present between day 5 to 9. Day one has no microorganism because I can't see any.

May be there were some microorganism present on day 1, but most of them started growing on day 5.

No, because there is no fungus on day 5

No, fungus cannot hurt you till day 18

Yes, because fungus is present although we cannot see it

There is too little fungus to make someone sick on day 5