Which types of activities should be done with flexibility exercises for the best workout possible? a.) mental and strength b.) strength and cardiorespiratory c.) mental and cardiorespiratory d.) strength and endurance

An ideal workout incorporates all four types of exercise: flexibility, strength, balance and endurance. Variety helps keep the body fit and healthy and this way the body will benefit the most form the workout. Flexibility exercises stretch your muscles and can help your body stay flexible. Together with flexibility exercises strength and endurance exercises should be done for the best workout possible. Correct D

b) the heart is a pump made of muscle and that is difficult to grow in the lab.