In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: What makes nobel gases unreactive? Answer: its electon configuration

A: Its electon configuration makes nobel gases unreactive.
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Q: Question: Which is an example of a renewable energy resource? Answer: biomass

A: Biomass is an example of a renewable energy resource.
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Q: Question: Vertebrates have evolved more complex digestive systems, with some species having multi-chambered types of what organ? Answer: stomach

A:
Vertebrates have evolved more complex digestive systems, with some species having multi-chambered types of stomach organ.
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