Given a scientific passage and an answer, generate a question for the given answer.

[EX Q]: Passage: A snowflake is made of ice, or water in the solid state. A solid is one of four well-known states of matter. The other three states are liquid, gas, and plasma. Compared with these other states of matter, solids have particles that are much more tightly packed together. The particles are held rigidly in place by all the other particles around them so they can't slip past one another or move apart. This gives solids a fixed shape and a fixed volume. Answer: plasma
[EX A]: What state of matter completes the list: solid, liquid, gas?

[EX Q]: Passage: All living things are capable of reproduction, the process by which living things give rise to offspring. Answer: reproduction
[EX A]: All living things are capable of what process whereby living things give rise to offspring?

[EX Q]: Passage: Connective tissue consists of cells that form the body's structure. Examples include bone and cartilage, which protect and support the body. Blood is also a connective tissue. It circulates and connects cells throughout the body. Answer: connective
[EX A]:
What tissue consists of cells that form the body's structure?