Score is an old word for the number 20. It is used in the famous expression from the Gettysburg Address: Four score and seven years ago.... = (4*20+7)years = 87 years. And in the Bible: âthree score years and tenâ meaning: âseventy years oldâ (3*20+10) (Psalm 90). This was thought to be a normal life span.
It may surprise you to know that your respiratory system does a lot more than just coordinate the oxygen that goes in and out of your lungs. Your respiratory system works with the muscular, skeletal and circulatory systems of your body in order to help you speak, smell and breathe.
Respiratory System. The respiratory system performs exchange between gases. The molecules of oxygen and carbon dioxide are exchanges, this process changes oxygen to carbon dioxide. Our respiratory system is responsible to clean out the bacteria or dust we breath in.Every living organism has that system, but in different shape and form, like how some have lungs while others have gills.espiratory System. The respiratory system performs exchange between gases. The molecules of oxygen and carbon dioxide are exchanges, this process changes oxygen to carbon dioxide. Our respiratory system is responsible to clean out the bacteria or dust we breath in.