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

Seedless and seed are the two divisions of vascular plants.
What are the two divisions of vascular plants?

Ultrasound, a diagnostic technology, uses high-frequency vibrations transmitted into any tissue in contact with the transducer.
What diagnostic technology uses high-frequency vibrations transmitted into any tissue in contact with the transducer?

The fossil record indicates that anthropoids began diverging from other primates about 50 many million years ago.

The fossil record indicates that anthropoids began diverging from other primates about how many million years ago?