Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
--------
Question: statement: liverworts can occupy niches in wet habitats, question: Where can liverworts occupy niches?

Answer: wet


Question: statement: humans develop a placenta during pregnancy, question: What do humans develop during pregnancy?

Answer: placenta


Question: statement: Hiding from consumer  can expand life spans., question: What can hiding from consumer do?

Answer:
expand life spans