OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A. The respiratory and digestive systems are separate in their activities.
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The muscles along the digestive tract depend upon oxygen in order to function.
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Digestion breaks down food as fuel and the respiratory system only affects the lungs as well as the blood cells.
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The digestive system supplies nitrogen and hydrogen to the respiratory system to extinguish from the body.
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Detailed explanation-1: -The respiratory and digestive systems are separate in their activities. The muscles along the digestive tract depend upon oxygen in order to function. Digestion breaks down food as fuel and the respiratory system only affects the lungs as well as the blood cells.
Detailed explanation-2: -The pharynx is part of the digestive system as well as the respiratory system because it carries both food and air. At the bottom of the pharynx, this pathway divides in two, one for food-the esophagus (pronounced: ih-SAH-fuh-gus), which leads to the stomach-and the other for air.
Detailed explanation-3: -The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.
Detailed explanation-4: -Which best describes the effects of exercise on the respiratory and digestive systems? Exercise causes deeper breathing that makes the heart and lung muscles stronger, while helping to push food through the body.