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

[EX Q]: Herbivores is the term for animals that eat producers to get energy.
[EX A]: What is the term for animals that eat producers to get energy?

[EX Q]: Stringed instruments can help show the relationship between tension and frequencies in strings.
[EX A]: Stringed instruments can help show the relationship between tension and what in strings?

[EX Q]: Mammalian sex determination is determined genetically by the presence of chromosomes identified by the letters x and y.
[EX A]:
Mammalian sex determination is determined genetically by the presence of chromosomes identified by what letters?