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

You call materials that have high resistance to electric current electric insulators.
What do you call materials that have high resistance to electric current?

The cardiovascular system in the human body consists of the heart, a network of blood vessels, and blood.
Which system in the human body consists of the heart, a network of blood vessels, and blood?

A method of sexual reproduction that occurs in plants can be described as seeds are produced from the flower of the plant.
Which statement describes a method of sexual reproduction that occurs in plants?