Please Help!

1. What is a function of the cardiorespiratory system?

A. transport and exchange gases(O2 and CO2)


B. Provides support and protection of the soft tissues that make up the rest of the body


C. Cleans up leaked fluids and plays a role in protecting you from infections


D. All of the above

2. What are the functions of the skeleton


A. support


B. protection


C. movement


D. all of the above

3. A type of exercise that requires oxygen, develops stamina and has a long duration.


A)
Aerobic


B)
Anaerobic


C)
Both A and B


D)
Neither A or B

4. The ability of a muscle or muscle group to exert force against resistance for a sustained period of time.


A. Muscular endurance


B. Muscular strength


C. Cardiovascular endurance


D. Strain