Please Help!

1. What is a function of the cardiorespiratory system?
   
   

Atransport and exchange gases(O2 and CO2)

BProvides support and protection of the soft tissues that make up the rest of the body

CCleans up leaked fluids and plays a role in protecting you from infections

DAll of the above

1. What are the functions of the skeleton
   
   
   

Asupport

Bprotection

Cmovement

Dall of the above

1. 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

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

AMuscular endurance

BMuscular strength

CCardiovascular endurance

DStrain