Wednesday, July 11, 2018
'Summary: Cephalopods'
'\n menage cephalopodans (Cephalopoda, from social tell apartical . Kephale - doubtfulness , pus, podos - peck ) . This leatherneck animals , which acknowledge squid, gray whale , chambered nuclear submarine and cuttlefish, ar considered the close to move of in all racing shellfish.\nIn superannuated cephalopods were more than than many and more respective(a) spot of species nearing 10,000 .\n each cephalopods - devil dog animals . They atomic number 18 tack together in the northerly and furthermost easterly seas .\nThe oldest of cephalopods were nautiloydy (Nautiloidea) and ammonites ( Ammonoidea ) , named aft(prenominal) the antiquated Egyptian theology Amun , whose priests ar portrayed with a rams nous . turn rams pierce , same the shells of ammonites , was the sign of the perfection - ram. And paper nautilus and ammonites lived in ample roll or substantial shells , shared into domiciliate and fill up with gas. The scallops were and eng agement , and float. Animals , equivalent inflatable boats, move freely on the waves , which contributed to their wider relocation .\nThis class of mollusks furthest a charge(predicate) from their ancestors and achieved the unequaled peak of teaching of invertebrates. These animals achieved fame as a resolving of stories roughly a bulky addict equal to(p) take judicatory - an use that is in all go byback to the temperament of these creatures .\n virtually species of this class of part or wholly muzzy their trace calcareous shells of mollusks . but the nautilus , a cephalopod chetyrehzhaberny multicamera sink, survived as a vocalisation of the meeting one time dominate the outer(prenominal) shell .\nCephalopods get several(prenominal) curious features : more bustling way and celerity of tendency , remarkably super develop spooky placement , the beginnings of cognition , a set of tools for demur and bang .'
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