Sentence examples for what is their origin from inspiring English sources

If there are moral facts, what is their origin?

What is their origin and from where do they derive their authority?

The ultimate question concerning the novel subfamilies that we found is what is their origin?

What is their origin?

However, there are several unresolved issues regarding these cells: first, it is not clear what was their origin - whether it was human CPE taken post-mortem or CPs from fetuses after abortions; attempts to obtain this information from the manufacturer were unsuccessful.

What are their origins?

Is this genomic characterization sufficient and does it obviate the need to ask the individual what is their race or continent of origin?

What's more, their origin lies with bats.

These observations raise two questions addressed immediately below: (1) how are D101 and the Mg2+ ion functionally linked, and (2) what is the origin of their anti-cooperative energetics?

What is the origin?

What is the origin of the sequester?