Upper is generally classed as mouth to terminal illium (small bowel) and lower as caecum through to anus. (different from fore, mid, hind gut)
The upper mantle is harder than the lower mantle
The ozone forming in lower atmosphere is bad. Downside the upper atmosphere one is good.
mesophyll layer
The Upper Creek Indians oppsed American expansion and Lower accepted it.
central nervous system (CNS) is the descending tract and one ascending tract in upper motor neuron and lower motor neuron.
Sinuses are apart of your upper respitory tract, but the upper respitory tract also includes the nasal cavity, the pharynx and the larynx. A sinus infection is just an infection in your paranasal sinuses.
In control data analysis, the difference between these two limits is called the range.
No, the trachea is not in the lower respiratory tract. It is part of the upper respiratory tract, connecting the larynx to the bronchi in the chest.
The main difference between the Upper Peninsula and Lower Peninsula of Michigan is their geographical location. The Upper Peninsula is located to the north and is less populated with vast wilderness and natural beauty, while the Lower Peninsula is located to the south and is more densely populated with major cities like Detroit and Lansing.
the upper part of trachea is larynx and lower is two tubes which are bronchi
the upper and lower classes
Interquartile Range, or IQR