Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

statement: stopping can cause a car's speed to overcome tire traction., question: What can stopping cause a car's speed to overcome?
tire traction

statement: Complex systems are needed to carry out all the functions of organisms, question: What is needed to carry out all functions of organisms?
Complex systems

statement: Tadpoles change into an adult that breathes with lungs and through skin., question: What do tadpoles breathe with?

lungs and through skin