Description

Starfish or sea stars are star-shaped echinoderms belonging to theclass Asteroidea. Common usage frequently finds these names beingalso applied to ophiuroids, which are correctly referred to asbrittle stars or basket stars. About 1,500 species of starfishoccur on the seabed in all the world's oceans from the tropics tofrigid polar waters. They are found from the intertidal zone downto abyssal depths 6,000 mbelow the surface. Starfish are marineinvertebrates. They typically have a central disc and five armsthough some species have more than this. The aboral or uppersurface may be smooth granular or spiny and is covered withoverlapping plates. Many species are brightly coloured in variousshades of red or orange while others are blue, grey or brown.Starfish have tube feet operated by a hydraulic system and a mouthat the centre of the oral or lower surface. They are opportunisticfeeders and are mostly predators on benthic invertebrates. Severalspecies have specialized feeding behaviours including eversion oftheir stomachs and suspension feeding. They have complex lifecycles and can reproduce both sexually and asexually. Most canregenerate damaged parts or lost arms and they can shed arms as ameans of defence. The Asteroidea occupy several significantecological roles. Starfish, such as the ochre sea star and the reefsea star have become widely known as examples of the keystonespecies concept in ecology. The tropical crown-of-thorns starfishis a voracious predator of coral throughout the Indo-Pacific regionand the northern Pacific sea star is considered to be one of theworld's 100 worst invasive species. starfish wallpapers for yourphone or tablet! - This feature can tap on the screen and make theimage immediately. - It has support for landscape mode and portraitmode switching screen. - Beautiful background free and fun arewaiting for you! Instructions to install: Home - Menu ->Wallpapers. Movements and flashing light keeps changing with time.- You can choose from several different styles. - HD Graphics andOpen GL - Battery usage optimization. - Compatible with 99% ofmobile phone accessories. - Aeroplane pictures fully supportslandscape and look amazing on tablet devices. Please contact us ifyou have any problems with our application. * Android is atrademark of Google.