Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Fact: bottom dwelling organisms can be filter feeders. 
Question: What can bottom dwelling organisms be?
filter feeders.

Fact: Ink is used for hiding from predators by some animals that eat small crabs. 
Question: Some animals that eat small crabs also use this for hiding from predators:?
ink.

Fact: Lung cancer can be caused by direct or passive inhalation. 
Question: What can be caused by direct or passive inhalation?

lung cancer.