EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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oxygen
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carbon dioxide
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nitrogen
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helium
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Detailed explanation-1: -The cells in our bodies need oxygen to stay alive. Carbon dioxide is made in our bodies as cells do their jobs. The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.
Detailed explanation-2: -Respiration is the movement of oxygen from the outside environment to the cells within tissues, and the removal of carbon dioxide in the opposite direction. In respiration, the oxygen liberated by plants is used by the body to produce energy.
Detailed explanation-3: -The Atmosphere and Living Things Carbon dioxide and oxygen are the gases in the atmosphere that are needed for life. Plants need carbon dioxide for photosynthesis.