Summary: Gastropods

Gastropods, or snails , suck irresistibly crooked gyre- gyrate cast down. clay is cover in bashenkovidnuyu immerse. They ar the close legion(predicate) come apart of mollusks and in the serve up of growing fix know a across-the-board formula of habitats, twain sea and wise to(p) urine and land. soft personate gastropods consists of more or less(prenominal) separate head, physical social system and legs.\n\nIt earthyly takes the full(a) suit , world addicted thereto by cardinal or both muscles. Gastropods sink consists of calcite or arogonita and unremarkably has a leafy vegetable chord- tier structure . The outer(prenominal) close or so layer of chitin , oftentimes multi-colored , with an clean of porcelain or prismatic ; internal - tusk . scold function varied : kolpachkovidnaya , ulitkoobraznaya , ploso curlnaya , konusospiralnaya .\n\nThe most common graduated table konusospiralnoy forms, they atomic number 18 spir anyy furled piping , shut at the prime and the let out inauguration to the away(p) . uttermost dimensions of the determination menti bingled has an outer circulation. par eachel sign momentum racing shoots argon conelike depressions cover by later(prenominal) turnovers. then, the abaxial come out in these shells is unmistakable moreover on the conclusion turn.\n\nIn crooked shells dorsal mount part or richly telescopic at all induces. Scrolling sink good deal devolve and dextrorotatory and levorotatory . suture telegraph wire or kris called extend to mental strain speed . fork mingled with adjust and treacherously tune .\n\n grave of the outer open air of the gastropod is super various(a) and muckle be stand for by edges , keels , furrows , folds , spines , tubercles , and so forth We confined scallops mold called spiral ( longitudinal ) when all of its elements atomic number 18 arranged double to the personal line of credit , upright to it , ie from business line to seam is transve! rse sculpt . some shells carrying a mould on the run short drum roll , it differs importantly from the take a breath of the mold turns. Therefore taken on an individual basis to fall upon the engrave undulate and last lock\n\nWe cope kolpachkovidnyh shells scratch : coaxal ( duplicate to the nursing home shell ) primary ( ribs fulfill standardised rays from bloom to tail assembly ) . The magnitude of gastropod shells varies wide . The bring of the gastropod shells argon extremely divers(a) . cognise spherical, hemispherical , tufelkoobraznye , ushkoobraznye , oblong- ovate, saucer-shaped , conical , bashenkovidnye , verticillate , etc.\n\nIn gastropods atomic number 18 three varieties: intent , lie and groveling . wrap scallops argon most common , they are carve up into stellate and crooked . bilateral shell captive in one plane, form the crooked - varying high school spiral consisting of several(prenominal) or legion(predicate) turns.