Context: Symbiosis (from Greek σύν "together" and βίωσις "living") is close and often long-term interaction between two different biological species. In 1877 Albert Bernhard Frank used the word symbiosis (which previously had been used to depict people living together in community) to describe the mutualistic relationship in lichens. In 1879, the German mycologist Heinrich Anton de Bary defined it as "the living together of unlike organisms."

Question: What language does the word "symbiosis" come from?
Answer: Greek

Question: What type of organism did Frank apply the term "symbiosis" to?
Answer: lichens

Question: What nationality was Heinrich Anton de Bary?
Answer: German

Question: What nationality was Albert Bernhard Frank?
Answer: Unanswerable

Question: When did Heinrich Anton de Bary discover lichens?
Answer: Unanswerable

Question: When was the the word "symbiosis" discovered?
Answer: Unanswerable

Question: What year did Heinrich Anton de Bary become a mycologist?
Answer: Unanswerable

Question: What year did Albert Bernhard Frank agree to define "symbiosis" as "the living together of unlike organisms."?
Answer: Unanswerable