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

[EX Q]: Seedless and seed are the two divisions of vascular plants.
[EX A]: What are the two divisions of vascular plants?

[EX Q]: When the smooth muscle relaxes, the arterioles dilate, allowing blood to enter the capillaries.
[EX A]: When the smooth muscle relaxes, the arterioles dilate, allowing blood to enter the what?

[EX Q]: Ultrasound, a diagnostic technology, uses high-frequency vibrations transmitted into any tissue in contact with the transducer.
[EX A]:
What diagnostic technology uses high-frequency vibrations transmitted into any tissue in contact with the transducer?