Given a scientific question, generate a correct answer to it.

[Q]: A plant is composed of two main types of tissue: meristematic tissue and what other kind of tissue?
[A]: permanent tissue

[Q]: What is a hydrocarbon in which the carbon chain joins to itself in a ring?
[A]: cyclic hydrocarbon

[Q]: What is the option to remove kidney stones other than surgery?
[A]:
ultrasound treatments