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: Which proteins recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms? Answer: antibodies
Antibodies recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms.

Question: What is the hollow and muscular balloon-shaped organ that collects urine? Answer: urinary bladder
The urinary bladder is the hollow and muscular balloon-shaped organ that collects urine.

Question: What are found primarily in lines around the edges of some continents? Answer: earthquakes

Earthquakes are found primarily in lines around the edges of some continents.