aquatic surface respiration
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Aquatic respiration — is the process whereby an aquatic animal obtains oxygen from water. Earth s natural bodies of water have a low oxygen concentration much lower than the level of oxygen in air at the earth s surface. Smaller organisms can obtain sufficient oxygen… … Wikipedia
respiration — respirational, adj. /res peuh ray sheuhn/, n. 1. the act of respiring; inhalation and exhalation of air; breathing. 2. Biol. a. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells,… … Universalium
Aquatic insects — A water beetle A whirligig beetle Aquatic insects live some portion of their life cycle in the water. They feed in the same way … Wikipedia
Respiration organ — Breathing / Respiration organs are used by most, or all, animals to exchange the gases necessary for their life functions, known as respiration. These organs come in many forms, some of them apparently having independently evolved:* skin some… … Wikipedia
A.A.T. (Aquatic Ape Theory) — Théorie du primate aquatique La Théorie du Primate Aquatique (de l anglais A.A.T. ou Aquatic Ape Theory) est une hypothèse qui propose un ancêtre aquatique ou semi aquatique parmi ceux de l homme moderne ce qui aurait notamment contribué à l… … Wikipédia en Français
ASR — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sigles d’une seule lettre Sigles de deux lettres > Sigles de trois lettres Sigles de quatre lettres … Wikipédia en Français
Asr — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}} Sigles d une seule lettre Sigles de deux lettres > Sigles de trois lettres … Wikipédia en Français
amphibian — /am fib ee euhn/, n. 1. any cold blooded vertebrate of the class Amphibia, comprising frogs and toads, newts and salamanders, and caecilians, the larvae being typically aquatic, breathing by gills, and the adults being typically semiterrestrial,… … Universalium
Pelagic zone — Aquatic layers Pelagic Photic Epipelagic … Wikipedia
biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; … Universalium
