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

[Q]: Blood is made up of red blood cells, white blood cells, platelets, and plasma.
[A]: Blood is made up of red blood cells, white blood cells, platelets, and what else?


[Q]: Microevolution is the process by which organisms change in small ways over time.
[A]: What is the process by which organisms change in small ways over time?


[Q]: Anions are formed by atoms gaining electrons.
[A]:
What are formed by atoms gaining electrons?