Why Do Animals Need Oxygen?
Why Do Animals Need Oxygen? We must have oxygen to live. Every living animal cell needs oxygen for its vital metabolic activities (the process of converting fuel to...
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Where Is the Aorta?
Where Is the Aorta? The aorta is the great artery rising from the left side of the heart, through which the blood passes on its way to all parts of the body except the...
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What Is Pus?
What Is Pus? The pus, typically white-yellow, yellow, or yellow-brown, we see oozing out from a septic cut is made up of the dead bodies of white blood cells which have...
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Why Do We Have Kidneys?
Why Do We Have Kidneys? Our kidneys perform four functions, of which the most obvious is the ejection of waste materials containing nitrogen from the body. They also...
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Why Don’t Fish in the Arctic Ocean Freeze?
Why Don’t Fish in the Arctic Ocean Freeze? Scientists have discovered why fish don’t freeze in the Arctic Ocean. Together with cooperation partners from the...
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