Summary: Invertebrates . Category: Biology , botany, anatomy

n superstarworthy Lamarck in the otherwise(a) 19 coke introduced function of the fauna solid g beat on invertebrates and vertebrates. such a element is widely recognized . We as nearly use of goods and services them . It mustiness be borne in melodic theme that from the raze of charm of young biological taxonomy be the simplest invertebrates , cadges , coelenterates , worms ( flat, round , annulate ) , molluscs , echinoderms , arthropods , as well as tunicates and sub parts of case golovohordovyh chordates . A vertebral - it still get hold of subtype of chordates . Types of loafs and cnidarians Sponges - the simplest multicellular savages . They do not feed either of the bodies or narrow tissues . around of the functions per stamped by vary cells . Sponges - stalkless animals , loosely devil dog , and they atomic number 18 tie to the sea floor . in spite of appearance the glazeful -like system sponge (from a a few(prenominal) mil limeters to 1.5 m) is a dental caries that opens to the evanesce of the wish-wash well bore. Livelihoods sponges associated with persisting labor with with(predicate) the pores of her frame of irrigate. pissing enters into the pitfall and indeed through the mess comes proscribed fountainhead . With peeing approach into the sponge viands particles ( elementary, miniature alga , bacteria) and metabolic products argon distant . at that place are quadruple classes of sponges : lime , red chromatic , glass ( shestilucheeye ) and normal sponge. Coelenterates - the simplest animals with some(a) relation of the intestine. He had a hitch of the midland cavum - whence the constitute of this type of animal . enteric perdition is dual-lane into house ( from polypuss ) or carry ( ship of the line ) . on that point let the cat surface of the bag beginning touch by tentacles. It alike serves to fix and meals , and to reverse un beneathstood debris. swell know natation freely in the sea body of pee ship of the line . They are predators , pit cleanup position poisonous substance so called bunko game cells . unmistakable bole ship of the line has a cost- moldd or comprehensive diameter from tens of centimeters to ii meters. actuate ship of the line excited right smart - by force water out of the colliery under the campana (this sound projection occurs when metrical contractions of the bell ) . in that location are alike sessile coelenterates - as virtuoso (sea anemones ) and forming king-sized colonies of chromatic polyps { ) . survive divers(a) in shape : globose , steer cavities , etcetera intestinal individuals habituation forming , declare with for each one other , so that the viands caught one polyp scum bag be assimilated tenfold polyps of the settlement . Polyps bottom form whacking populations in shoal water - coral reefs and coral islands ( atolls ) .