Two mycologists studied about mushrooms. Bert studied mycorrhizal fungi, while Vince studied saprophytic mushrooms. Which person studied a bit less about the mycelia of the fungi?
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Answer: Vince

Paul and Dirk were studying the human digestive system. paul studied more about the stomach, while Dirk studied more about the jejunum. Which student read more about millions of microscopic, fingerlike projections?
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Answer: Dirk

Two students studied the atmosphere of Earth and other planets from our solar system. Zack learned about Earth's atmosphere, while Ken learned about the atmospheric conditions on planet Venus. Which student learned less about carbon dioxide clouds?
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Answer:
Zack