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In the blood, the enzyme carbonic anhydrase allows water and CO2 to combine to form hydrogen carbonate ions and hydrogen ions. In the presence of many hydrogen ions, oxygen has a weaker affinity for haemo...
Both a food chain and a food web show the transfer of energy through an ecosystem, from autotrophs to final consumers. However, they have a number of differences. A food chain only shows one path of energ...
Screening embryos for conditions carries the risks of possible harm to the mother and harm to the embryo, including possible loss of the embryo. The result of the screening could also carry ethical implic...
The heart is made up of four chambers. The ones at the bottom are called right and left ventricles and those at the top are the left and right atria. The left and right sides are divided by the septum, a ...
Inspiration:-Diaphragm muscles contract, pulling the diaphragm downwards-External intercostal muscles contract pulling ribs upwards and outwards-Thoracic cavity increases in volume, causi...
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