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

Muscle type of cell function relies on microfilaments, which are the actin components of the cytoskeleton.
What type of cell function relies on microfilaments, which are the actin components of the cytoskeleton?

Embryos usually don't survive if they have extra or too few of these genetic units?
Embryos usually don't survive if they have extra or too few of these genetic units?

The term technology describes the application of knowledge to real-world problems and is practiced by engineers.
What term describes the application of knowledge to real-world problems and is practiced by engineers?