<span>b. They release oxygen that organisms use to breathe.</span>
The correct answer is C.
Cardiorespiratory fitness is a medical term used to describe the capacity of an athlete's body to transfer the necessary oxygen to the muscles and the capacity of the muscles to absorb this oxygen. There are various ways to assess the cardiorespiratory fitness of an athlete, such as the VO2max testing, the Bruce protocol treadmill test, and the beep or bleep test. The more appropriate way to assess the cardiorespiratory fitness is to use a combination of tests since this will give a complete image of the body's fitness level.
I’m not sure but I think it’s B
Aquí está la mitad. El sistema tegumentario tiene múltiples funciones en la homeostasis, incluida la protección, la regulación de la temperatura, la recepción sensorial, la síntesis bioquímica y la absorción. Todos los sistemas corporales funcionan de manera interconectada para mantener las condiciones internas esenciales para la función del cuerpo. Use google translate.