Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Protists are thought to be the oldest eukaryotes.
[A]: What is thought to be the oldest eukaryotes?


[Q]: Prostate is the most common type of cancer in adult males.
[A]: What is the most common type of cancer in adult males?


[Q]: Face and ears parts of a human possess the highest concentration of thermoreceptors.
[A]:
What parts of a human possess the highest concentration of thermoreceptors?