Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
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Question: Question: In hornworts, the horns are the sporophytes that rise up from what? Answer: the leaflike gametophyte

Answer: Jason Hollinger. In hornworts, the horns are the sporophytes that rise up from the leaflike gametophyte . CC BY 2.0.

Question: Question: Protists are the simplest of what? Answer: eukaryotes

Answer: Protists are the simplest eukaryotes. They are easiest to define by what they are not. Protists are not animals, plants, or fungi.

Question: Question: What is solid water that forms when water vapor undergoes deposition? Answer: frost

Answer:
Frost is solid water that forms when water vapor undergoes deposition.