
Which is a specific benefit of physical activity and increased cardiorespiratory endurance for your heart?
A. Bigger heart muscle pumps blood more efficiently
B. Improves Blood Flow
C. Improves Lung Capacity
D. Hold More Air
Select your answer:

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Cell Theory and Cell Organelles Clinical Pathology The Cell Cycle & Cancer Skin Structure and Growth Biology for Engineers Myocarditis Diseases Key Terms Trichology Obesity Digestive and Circulatory System Endodontic Surgery Circulatory & Lymphatic Bacteria, Viruses, and Fungi Muscle Histology BloodOther quiz:
Lung & Breathing › ViewWhat is the name of the two main branches from the trachea (one to each lung)?
A. bronchi
B. alveoli
C. capillaries
D. bronchioles
Animal Genetics and Nutrition › View
Which behavior reaction frequently is shown before an agression reaction?
A. Comfort
B. Fear
C. Submission
D. Happy