FACTOID # 7: Israel enjoys a GDP per capita 21 times that of the Palestinian West Bank and 33 times that of the Gaza Strip. Its military spending per capita tops the world.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

FACTS & STATISTICS    Simple view

  1. Select countries to view: (hold down Control key and click to select several)

     

     

    Compare:

     

     
  1. Select fact or statistic: (* = graphable)

     

     

     

  2. (OPTIONAL) Compare to statistic: (both need to be graphable)

     

     

     

  3. View result as:

     

       
(OR) SEARCH ALL encyclopedia, stats & forums:   

Encyclopedia > Gastropod shell
Shell of Zonitoides nitidus has dextral coiling. Upper image: dosrsal view, whorl (apex) position, central image: ventral view, down image: base or umbilicus position
Shell of Zonitoides nitidus has dextral coiling.
Upper image: dosrsal view, whorl (apex) position,
central image: ventral view,
down image: base or umbilicus position

Gastropod shell is animal shell of gastropods. It is produced by mantle. Various seashells Danielle A shell is the hard, rigid outer covering, or integument, allanimals. ... Subclasses Eogastropoda (True Limpets and relatives) Orthogastropoda The gastropods, gasteropods, or univalves, are the largest and most successful class of mollusks, with 60,000-75,000 known living species comprising the snails and slugs as well as a vast number of marine and freshwater species. ... The mantle is an organ found in mollusks. ...


Most gastropods have a shell, which is in one piece and typically spirally coiled due of torsion. In mathematics, a spiral is a curve which turns around some central point or axis, getting progressively closer to or farther from it, depending on which way you follow the curve. ... Look up torsion in Wiktionary, the free dictionary. ...


Parts of gastropod shell may include:

Various types of shells: The periostracum is a thin organic coating forming the outer-most layer of the shell of many mollusks. ... This page is a candidate to be copied to Wiktionary using the Transwiki process. ... Apex is the, usually pointed, tip of the spire of the shell of a gastropod. ... The Spire in a mollusc shell constitutes all the whorls of a spiral shell exclusive except for the body whorl. ... A whorl is a single, complete 360° turn in the spiral growth of a mollusc shell. ... The Body whorl in a mollusc shell is the most recently formed whorl of a spiral shell, terminating in the aperture. ... Lucius Junius Moderatus Columella (Gades in Hispania Baetica, 4 AD - ca. ... Varix (Pl. ... The operculum (plural : opercula or operculums) of gastropods is a corneous plate at the opening of the shell, attached dorsally to the foot. ...

planispiral shell - Marisa cornuarietis Image File history File links Marisa_cornuarietis. ... a growing interest to aquaculturists, the marisa cornuarietis is a freshwater snail that lays eggs below the waterline and eats aquatic plants, algae and dead fish/snails. ...

shell - Helix pomatia

shell - Cypraea nebrites
shell - Turbo chinensis
shell - Turitellidae
shell

See also

Wikipedia:WikiProject Gastropods 		 This gastropod-related article is a stub. You can help Wikipedia by expanding it.


 
COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:
 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.