I believe in both carbon dioxide and oxygen
He <span>is probably being treated for SLEEP APNEA.
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Sleep apnea is a sleep disorder that occurs when a person stops breathing during sleep. To prevents this patients can use <span>nasal masks, which blows air into the nose while sleeping.
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<span />This can happen a few times of even hundreds of times stopping the whole body from getting enough oxygen.
A convergent evolution is a phenomenon of independent evolution of similar traits in species that are in different lineages. These traits are called analogues structures. They are similar in form or function but were not present in the last common ancestor of those species. So, t<span>he appendages of cockroaches and turtles are analogues structures with the similar function - creeping movements, and they are the result of the convergent evolution.</span>
An equinox is an occurrence that happens twice a year and is when the plane of the Earth's equator passes through the center of the Sun. During this, the hours of day and night are almost equal throughout this plane throughout the world.