Human: Can you explain what a symbiotic relationship is? Assistant: 
A symbiotic relationship is one in which two organisms live together and benefit from each other. For example, the fungus Armillaria solidipes lives inside of the roots of certain trees and provides nutrients to the tree while the tree provides shelter for the fungus. The fungi also helps protect the tree from disease. Another example is the relationship between lichens and algae, which can form a symbiotic relationship.