The mushroom when in the presence of living matter such as living plant doesn't feed on it.
What is a Mushroom?
This is a type of fungi which acts as a saprophyte and feeds on non living organic matter which was why it wasn't broken down in the test result.
They are known to feed on non living matter and converts them to the nutrients needed for them to grow and survive in the ecosystem.
Read more about Mushroom here https://brainly.com/question/848978
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