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Given a scientific passage and an answer, generate a question for the given answer.

Passage: Ants and termites grow fungi in underground "fungus gardens" that they create. When the ants or termites have eaten a big meal of wood or leaves, they also eat some fungi from their gardens. The fungi help them digest the wood or leaves. The fungi secrete certain enzymes that the ants or termites cannot produce on their own. Answer: fungi
Output:
What do ants and termites eat to help them digest wood and leaves?