Gills - respiration, Biology

Gills -Respiration

Gills are highly vascularised extensions of gas exchange membranes. The simple type may be extension of the body surface as in sea-slugs, sea stars and many of slow moving aquatic animals. The complexity of the gills reflects the animal's requirement for oxygen. Animals with greater need or oxygen have elaborate gill structure. Before we discuss the structure of the gill let us consider the ways in which gills are ventilated because the environment in contact with respiratory surface must be continuously renewed to avoid depletion of oxygen or excessive accumulation of carbon dioxide.

 

Posted Date: 1/15/2013 6:42:10 AM | Location : United States







Related Discussions:- Gills - respiration, Assignment Help, Ask Question on Gills - respiration, Get Answer, Expert's Help, Gills - respiration Discussions

Write discussion on Gills - respiration
Your posts are moderated
Related Questions
What are mutagenic agents? The Mutagenic agents, or mutagens, are physical, chemical or biological factors that can cause alteration in DNA molecules. Instances of believed

Enumerate about the Traumatic brain injuries Brain injury is a common result of automobile and industrial accidents and of war injuries. Brain injury can affect brain function

Why must our cells duplicate the DNA molecules before they divide in Mitosis? Why do chromosomes condense by wrapping around the histone protiens durning the cell cycle?

Nursing Process History Character of onset and duration of cough, sputum production, dyspnea, pain in right upper quarant.  Smoking history.  Past illness -

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

how does respiration in animals occur? what is respiration? what are the common types of respiration?

MCNAUGHTON'S CASE AND LAW: In 1843, McNaughton shot and  killed Sir Robert Peel's secretary Edward -Drymmond.  It was  shown  that McNaughton suffered from a number of  delusi

Chuck Darwin knew BLENDING THEORY, but he also knew that if it was true his NOT work because

What is consanguineal marriage? Why is the appearing of genetic disease more probable in the offspring of a consanguineal marriage? Consanguineal marriage is the marriage among