In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Question: When different types of tissues work together to perform a unique function, what do they form? Answer: organ
When different types of tissues work together to perform a unique function, they form organ.

Question: What kind of parasites are nearly all ticks that live on the body surfaces of reptiles or mammals? Answer: bloodsucking
Bloodsucking parasites are nearly all ticks that live on the body surfaces of reptiles or mammals.

Question: Uranium is an important part of the process used to harness which type of power? Answer: nuclear

Uranium is an important part of the process that is used to harness nuclear power.