Ascend

For number 2: pneumomediastinum Ruptured bronchus or alveoli in the lungs from excessive pressure. May be caused by holding breath while ascending. lung expansion injury It can be caused by holding breath while ascending. Basically if you hold your breath and then ascend the air inside you ...

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As was said if you ascend into the higher forms of Biology they no longer abide by such. Instead they reffer to Domains which were previously spoken about, your assertions are apt though- they do branch off as you stated. Perhaps you ...

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