Knee raises work the obliques and hip flexors
Wall sits work the glutes and the core
Lunges work the calves, quads, hamstrings, and back muscles
Legs lifts work the glutes, and lower abdominal as well as obliques
Heel raises work your calves
Steps up work your quads, hamstrings, and glutes
Squats work the glutes, Maximus, minimus
Explanation: I’m a body builder
The correct answer is letter C. glucose. The oxygen-energy system can extract energy from glucose. Actually, there are three separate energy production systems that comes from the foods that we eat and turn into a chemical energy. These are the: ATP-PC system, Anaerobic glycolytic system, Aerobic <span>system. Glycolytic system contains glucose.</span>
Exercise and not to smoke or be around second hand smoke. But exercise is probably the more important thing you can do to protect your respiratory system.