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

[EX Q]: Endoscopes are used to explore the body through various orifices or minor incisions.
[EX A]: Endoscopes are used to explore the body through various orifices or these?

[EX Q]: Altricial organisms are helpless at birth and require lots of help from their parents.
[EX A]: What type of organisms are helpless at birth and require lots of help from their parents?

[EX Q]: Embryos usually don't survive if they have extra or too few of these genetic units?
[EX A]:
Embryos usually don't survive if they have extra or too few of these genetic units?