Answer: In 1858, Pasteur filtered air through a gun-cotton filter and, upon microscopic examination of the cotton, found it full of microorganisms.
I hope this helped!
Answer:
Im going to guess True :)
Explanation:
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This is likely due to peripheral vasoconstriction. This happens in order for the body to retain heat longer in order to protect the body from hypothermia. The skin would act as an insulator of the organs and water. Also, when this happens, it would allow more of the oxygen to be transported to the oxygen sensitive organs like the brain and the heart.
As an energy source, To heal and build and repair tissue, To sustain growth, To help transport oxygen to the cells, To regulate body functions. hope this helped :)
Cardiorespiratory endurance is a measurement of how well your heart, lungs and muscles work together to keep your body active over an extended period of time. Exercisers can improve cardiorespiratory endurance by participating in a program of regular aerobic exercise.