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In biology and ecology, an organism (in Greek organon = instrument) is a living complex adaptive system of organs that influence each other in such a way that they function as a more or less stable whole. An organism is in a non-equilibrium thermodynamic state, maintaining a homeostatic internal environment, and a continuous input of energy is required to maintain this state.
The origin of life and the relationships between its major lineages are controversial. Two main grades may be distinguished, the prokaryotes and eukaryotes. The prokaryotes are generally considered to represent two separate domains, called the Bacteria and Archaea, which are not closer to one another than to the eukaryotes. The gap between prokaryotes and eukaryotes is widely considered a major missing link in evolutionary history. Two eukaryotic organelles, namely mitochondria and chloroplasts, are generally considered to be derived from endosymbiotic bacteria.
The phrase complex organism describes any organism with more than one cell.
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Off to work to see my aquatic organisms... Fish is money!! #work
__JCal (Justin Callaghan) Wed, 08 Feb 2012 11:30:40 -0000
Off to work to see my aquatic organisms... Fish is money!! #work
Diatomaceous Earth Food Grade 50 Lb: This fossilized skeletons of tiny aquatic organisms. When untreated, the ra... http://t.co/TxMQ4Wv8
Karieowi (Karie Trumball) Wed, 08 Feb 2012 05:48:37 -0000
Diatomaceous Earth Food Grade 50 Lb: This fossilized skeletons of tiny aquatic organisms. When untreated, the ra... http://t.co/TxMQ4Wv8
The Mechanics and Physiology of Animal Swimming: Aquatic organisms swim in a variety of ways, from jet propulsio... http://t.co/mlN3Epv7
Jesusgqk (Jesus Flake) Mon, 06 Feb 2012 04:19:36 -0000
The Mechanics and Physiology of Animal Swimming: Aquatic organisms swim in a variety of ways, from jet propulsio... http://t.co/mlN3Epv7
The Mechanics and Physiology of Animal Swimming: Aquatic organisms swim in a variety of ways, from jet propulsio... http://t.co/THM4VPSK
Sheronpyg (Sheron Werblow) Sun, 05 Feb 2012 21:29:03 -0000
The Mechanics and Physiology of Animal Swimming: Aquatic organisms swim in a variety of ways, from jet propulsio... http://t.co/THM4VPSK
Nonindigenous Fresh Water Organisms: Vectors, Biology, and Impacts: Alien species invade aquatic ecosystems thro... http://t.co/ytO4Qpzu
Katyhrc (Katy Laban) Sun, 05 Feb 2012 20:06:51 -0000
Nonindigenous Fresh Water Organisms: Vectors, Biology, and Impacts: Alien species invade aquatic ecosystems thro... http://t.co/ytO4Qpzu
Diatomaceous Earth Food Grade 50 Lb: This fossilized skeletons of tiny aquatic organisms. When untreated, the ra... http://t.co/TE8bXbKR
Jennieglt (Jennie Reading) Sat, 04 Feb 2012 04:37:14 -0000
Diatomaceous Earth Food Grade 50 Lb: This fossilized skeletons of tiny aquatic organisms. When untreated, the ra... http://t.co/TE8bXbKR
AAFP: Poisoning, Envenomation, and Trauma from Marine Creatures - Symptoms and treatment of ciguatera and scombroid poisoning, stings by jellyfish, sea urchins, and stingrays, and trauma. Includes a patient brochure.
eMedicine Health - Jellyfish Stings - Overview of symptoms and treatment of jellyfish stings.
Meta Description: [ Jellyfish are aquatic animals that can cause a ]
eMedicine Health - Shark Bite - Overview of shark bites and their treatment.
Meta Description: [ Sharks have had remarkable evolutionary success. The first sharks lived approximately 400 million years ago, about 200 million years before the dinosaurs. They have survived the reign of the large ... ]
Jelly Fish Stings - Information, symptoms and treatment on skin injuries from marine life such as Jellyfish and Portuguese man-of-war.
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