Cephalopods: tsanangudzo pfupi boka

Cephalopods zvikuru zvikuru kirasi mhando molluscs. Kazhinji, nhengo dzeboka iri vanogara zvomumvura mumvura uye vanosarudza dzinopisa kana subtropical ekunze. Zvisinei, dzimwe mhando vanogara zvakawanda vakadzikama ezvinhu, kusanganisira polar nzvimbo.

Kirasi Cephalopods: chivakwa muviri

Muviri boka iri kunoratidzwa bilateral symmetry uye yakapatsanurwa pachena huru zvikamu zviviri - musoro uye mutumbi. Gumbo clams mukufamba shanduka yachinja kupinda fanera uye akaisa rakapoteredzwa tentacles. Kana singi, ipapo vakanyanya yepamusoro kwemarudzi ipfupi uye riri pasi ganda (kungava ndisipo). Vamiririri chinyakare vanoonekwa ne hombe yokunze goko ane muzvizhinji kuti yoga makamuri.

The ganda, anofukidza muviri, chinosanganisira chete paiva epithelium uye connective tishu rukoko. Panzira, dzimwe mhando vane chromatophores ruvara masero, kuburikidza izvo muviri kunogona kuchinja ruvara, achiva anenge asingaoneki tikafunga kwezvakatipoteredza.

Pazuva ventral divi jasi muviri chinhu mhango umo ducts rakazaruka pabonde uye excretory hurongwa, uye horo.

Cephalopods vanoshandisa anonakidza nzira kufamba. Strong tsandanyama sunga kusunda mvura kubva jasi mhango kupinda kwezvakatipoteredza, kutanga chinosemesa simba.

Cephalopods: dzomunyika mamiriro

The zvomudumbu hurongwa. Chete nhengo dzose mukirasi vari boka nezvikara. Huru zvakatapwa vari crustaceans, hove duku uye dzimwe dzemugungwa. mhuka First rinoburitsa pechaabata vachishandisa tentacles. Zvinofadza kuti mune mamwe marudzi ari mate mumasero kubereka muchetura kuti akabata mhuka vachibayira. Next, zvokudya anongokurukurwa simba horny shaya, uye ipapo anopinda huro. The pharyngeal mhango rakazaruka ducts ari mate omumuviri, izvo kugaya polysaccharides uye mapuroteni zvinoriumba. For esophageal bolus anopinda dumbu, izvo muupenyu chiropa uye pancreatic makemikari. chikafu Kuzeyewa iri kusingachakosheswi ura, iyo inoguma horo.

Panzira, dzimwe mhuka mukirasi iyi vane chinokosha mudziyo - vanonzi "ingi zai", iro rine rima nyaya. Kana nengozi pakavanda pahombodo yakanga jetted kuburikidza horo, izvo zvinoita kuti tikwanise nokukurumidza kuvanza mollusk.

Respiratoria hurongwa ine zvakanaka vakaumba gills izvo akaronga kumativi ose mhango iri nejasi. voga hurongwa ine 2 - 4 neitsvo.

The kweropa gadziriro yakatangawo zvakanaka uye ine mwoyo, nemidziyo ropa, uye vanonzi "dakashwa mwoyo", iro rinopa ropa pulsation oxidation. Zvinofadza kuti ave kufema ruvara rinowanikwa dzimwe vamiririri keyhole, rine mhangura. Ndokusaka ropa riri rebhuruu octopus.

Zvinofanira kucherechedzwa kuti boka iri mhuka ine zvikuru dzakabudirira tsinga kuti invertebrates zvose. Head ganglia vakafukidza zvakada cranium. The pfungwa nhengo - maziso, zviri zvokuimba aikanganiswa pakati kunhuhwidza - kunokudziridzwa kwazvo.

Cephalopods: inozivikanwa vamiririri kirasi

nhengo dzose cephalopod ine maitiro ayo akasiyana, zvinoshamisa adaptations kuti kunovhima uye upenyu mukudzika kwegungwa.

Somuenzaniso, cuttlefish inenge anopedzera nguva yake yose akavigwa mujecha mujinga pasi mudhamu. Kunosiya rakazaruka meso chete - zvinobatsira nokukurumidza kuona zvakatapwa.

Octopus - mumwe yakakurumbira cephalopod, izvo anoda kugara matombo pasi. Pano, unogona zvakakwana yokunyengera undovanda kurutivi ibwe. The rutsoka hwemhuka rakakamurwa dzakawanda kubvisa tentacles kudivi romukati.

Chimwe anozivikanwa boka - Squid, izvo dziri kuonekwa uchitsanya uye kupfuura nhengo yekirasi.