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Answer:
question 7
Explanation:
b)lungs
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Answer:
1. Carbon dioxide, Water, ATP
2.The gas which is expelled during expiration is carbondioxide. It is produced as a result of oxidation of glucose in the tissues which is called as cellular respiration.
3. The energy liberated during respiration is utilised for carrying out various life processes. Some of the energy liberated during the breakdown of 03 the glucose molecule, is in the form of heat, but a large part of it is converted into chemical energy called Adenosine Triphosphate (ATP).
4. There are many factors that affect the respiratory rate: age, gender, size and weight, exercise, anxiety, pain, the effect of some medicines, smoking habits and excitement level are among them.
5)1. Anaerobic respiration
2. Aerobic respiration
3. Haemoglobin
6. Every cell in your body needs oxygen to function. ... our body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar.
7. Kidney and lungs
8)a. These tubes are the airways that carry air to and from the air sacs in your lungs. The irritation of the tubes causes mucus to build up. This mucus and the swelling of the tubes make it harder for your lungs to move oxygen in and carbon dioxide out of your body.
b. As a person swallows, a flap of cartilage called the epiglottis closes off the windpipe. This temporarily stops breathing and prevents food from entering the airways. At the same time, a muscle called the upper esophageal sphincter relaxes, allowing food to move into the esophagus.
c. Nose hair is a natural part of the human body that serves as a defense system. Nasal hair keeps harmful debris out of the body system and maintains moisture in the air we breathe. Blood vessels in the nose and face are extra dense. In the nose, they support hair growth.
d. Overuse of a muscle, dehydration, muscle strain or simply holding a position for a prolonged period can cause a muscle cramp. In many cases, however, the cause isn't known. Although most muscle cramps are harmless, some may be related to an underlying medical condition, such as: Inadequate blood supply.
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