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

[Q]: Phospholipids are vesicles made of.
[A]: What are vesicles made of?


[Q]: Sporopollenin protects the pollen of seed plants and spores of seedless plants.
[A]: What protects the pollen of seed plants and spores of seedless plants?


[Q]: Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities.
[A]:
What works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities?