I want to know the answer to the following question:
What does the tree live on?
All the background I'm provided with is that "The American chestnut was virtually eliminated as a canopy species by the introduced fungal chestnut blight (Cryphonectaria parasitica), but lives on as sapling-sized sprouts that originate from roots, which are not killed by the fungus.". Is that enough to answer the question?
Answer: yes