29 Dec 2014 Home » Trivia Crack » What is yeast? What is yeast? Posted in Trivia Crack By emoji On December 29, 2014 Question: What is yeast? Choices: An animal A plant A root A fungus Correct answer: A fungus Post Views: 199 Related Posts What city are the Lakers from? What is the deepest part of the Ocean? How are the membranes that protect the brain and the spine called?