Given a scientific passage and an answer, generate a question for the given answer.

Example Input: Passage: Frogs and toads are adapted for jumping. Salamanders and newts may walk or swim. Caecilians live in the water or soil and are the only amphibians without legs. Answer: caecilians
Example Output: What is the only amphibian without legs?

Example Input: Passage: Saturated fatty acids have only single bonds between carbon atoms. As a result, the carbon atoms are bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogens. Saturated fatty acids are found in fats. Answer: saturated
Example Output: Carbon atoms are bonded to as many hydrogen atoms as possible in what type of fatty acids?

Example Input: Passage: Life on Earth is very diverse. The diversity of living things is called biodiversity . A measure of Earth's biodiversity is the number of different species of organisms that live on Earth. At least 10 million different species live on Earth today. They are commonly grouped into six different kingdoms. Examples of organisms within each kingdom are shown in Figure below . Answer: biodiversity
Example Output:
What is the diversity of living things called?