Final answer:
Butterflies do not use lungs to acquire oxygen. They have a tracheal system that delivers oxygen directly to their cells.
Step-by-step explanation:
Of the given options, the animal that does not use lungs to acquire oxygen is the butterfly. Butterflies have a respiratory system called a tracheal system. It consists of tiny tubes called trachea that deliver oxygen directly to the cells of the body. This allows them to breathe without the need for lungs.