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

[Q]: The long bone work as lever.
[A]: What type of function does the long bone perform?

[Q]: The right atrium of the heart receives the blood is pumped from veins of the systemic circuit.
[A]: What part of the heart receives the blood is pumped from veins of the systemic circuit?

[Q]: Flowers pollinated by wind generally lack brightly colored parts.
[A]:
Flowers pollinated by what means generally lack brightly colored parts?