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.

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

A: Protists are the simplest eukaryotes. They are easiest to define by what they are not. Protists are not animals, plants, or fungi.
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Q: Question: Angiosperms possess reproductive structures that attract animals that perform what role? Answer: pollination

A: structure in angiosperms consisting of male and female reproductive structures that attracts animal pollinators.
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Q: Question: What do monotremes have instead of a uterus and vagina? Answer: cloaca

A:
Monotremes have a cloaca instead of a uterus and vagina. The eggs pass through the opening of the cloaca.
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