Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[Q]: Question: Lungs, pharynx, larynx, trachea, and bronchi are part of which system? Answer: respiratory
[A]: The organs of the respiratory system include the lungs, pharynx, larynx, trachea, and bronchi.

[Q]: Question: Organelles whose membranes are specialized for aerobic respiration are called what? Answer: mitochondria
[A]: Mitochondria are organelles whose membranes are specialized for aerobic respiration.

[Q]: Question: Melting ice and grinding wood into sawdust are examples of what? Answer: physical changes
[A]:
Melting ice and grinding wood into sawdust are examples of physical changes.