The cardio-respiratory system consists of the cardio vascular system (heart and blood vessels) together with respiratory system (lungs and air ways). These systems work to transport oxygen to the muscles and organs of the body and remove waste products including carbon dioxide.
C, 60% is the correct answer.
The answer is A. Hepatitis B.
B. tough strong tissues that provide energy to perform physical activities.
- Tendons and cartilage are connective tissues.
- Fibers are fibers not muscles.
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