In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.
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Question: Fact: Nephrons are the structural and functional units of the kidneys.

Answer: Nephrons cause.


Question: Fact: if an object reflects light toward the eye then that object can be seen.

Answer: light beams.


Question: Fact: Sponges have specialized cells called collar cells.

Answer:
collar cell.