sentence2_structure: One function of the cardiovascular system<>is<>to transport gases throughout the body
sentence1: The areas of studey are body fluids, homeostasis, membrane transport, membrane potentials, and the functions of the musculoskeletal, cardiovascular, respiratory, renal, endocrine, gastrointestinal, and reproductive systems.
sentence2: One function of the cardiovascular system is to transport gases throughout the body.
question: Which is a function of the cardiovascular system?