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...he [[anthropic complex]]. That is, they require [[water]], [[air]] with [[oxygen]], [[temperature]]s around three hundred [[Kelvin]]s, and so on.[[Category:

...ife form]]s can't extract [[oxygen]] from fire, since fire itself consumes oxygen. A life form capable of efflammation is said to be ''efflammant''. (Somet

...mostly of iron and its compounds, the next most abundant [[element]] being oxygen, followed by silicon. However, much of the iron is in the core, and to a l ...of True Earth is about seventy-eight percent nitrogen, twenty-one percent oxygen, and one percent argon, the remainder (although these percentages seem to a

...r a convenient complement to the [[respiration]] of animals, which consume oxygen and exhale carbon dioxide, and makes it possible (with care) to produce an

...;including the [[lung]]s, if applicable, the better to supply the needed [[oxygen]] (or other effects of [[respiration]]). Some ambates even have separate [

...and shees of Oe are surrounded by [[field]]s or membrances that hold in [[oxygen]]-bearing [[air]], and keep out the sulfurous [[gas]]es and other [[poison]

...rom branches of the legs, the gills are feathery appendages that extract [[oxygen]] from the [[water]] flowing through them. Although there are two pairs of

...ssel]]s, useful for slightly more rapid unassisted transit, is filled with oxygen-rich fluid that moves through the vessels at a quick pace, carrying anythin

...s they can above it—though they can use [[atmosphere|atmospheric]] [[oxygen]] as a [[facultative anaerobe|supplementary]] [[energy]] source, so marine

...gh which [[gas exchange]] takes place. From the book gills, veins carry [[oxygen]]ated hæmolymph to the heart for distribution through the body.