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Gill - Respiration

An organ found in aquatic animals that helps them to filter oxygen from the water to be used for respiration. They can be found internally or externally depending on the species, and exchange oxygen and co2 between the internal and external environment.

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respiration of holocephali and the evolution of operculum

as the title says i would appreciate some help about respiration of holocephali and the evolution of operculum and the one gill opening thx

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by Munjarak
Wed Feb 29, 2012 8:26 pm
Forum: Zoology Discussion
Topic: respiration of holocephali and the evolution of operculum
Replies: 0
Views: 1123

fetus with gill

... them all). 1. notochord or spinal column (ie vertebra) 2. pharyngeal (gill) slits 3. Postanal tail http://embryo.soad.umich.edu/carnStages/stage14/10310lftLat.jpg ... the original question: No, they're not gills. Gills are used for respiration. Their evolutionary lineage can ...

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by AstusAleator
Fri Apr 21, 2006 9:04 am
Forum: Human Biology
Topic: fetus with gill
Replies: 26
Views: 20627

Fish & respiration

1) On this question, it says: Organisms must obtain oxygen from their surroundings. Fish obtain oxygen by means of gills. Oxygen dissolved in the outside water moves through the gill membranes. Why do organisms need to take in oxygen? 3) In fish, the blood, after leaving the heart, ...

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by Aerlinn
Tue Nov 15, 2005 9:22 am
Forum: Zoology Discussion
Topic: Fish & respiration
Replies: 4
Views: 2570

Oxygen in aquatic organisms...

... because they need it along with glucose to synthesise ATP for cellular respiration? Is there anything else to the question? Also, I have trouble ... by the equation: R= (A x C) / D R= Rate of movement A= area of the gill membrane C= the difference in concentration of oxygen on either side ...

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by Aerlinn
Mon Nov 14, 2005 1:00 pm
Forum: Cell Biology
Topic: Oxygen in aquatic organisms...
Replies: 2
Views: 1242

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