Marine rayuwa. Dorinar ruwa. Description, halaye. Yadda yawa kafafu wani dorinar ruwa?

Dorinar ruwa - wakilin detachment na marine mollusks na zuwa aji na cephalopods. Domin duk nau'in halayyar sacciform jiki. Daga baya a cikin labarin da muka samu daga cikin siffofin na wadannan dabbobi, da dorinar ruwa kafafu. Photo Shellfish ma za a ba da ke ƙasa.

taƙaitaccen bayanin

Octopuses uku zukatansu. Main fi gaban jini ta cikin jiki. Sauran tura shi ta hanyar da gills. Saboda gaskiya cewa jini da kuma erythrocytes ba hemocyanin (da shi ya maye gurbin baƙin ƙarfe, jan) a wuri na haemoglobin a cikin jinin dabba blue. Mun dorinar ruwa babban idanu tare da wani rectangular almajiri. The dabba ta kai ne da raya, shi yana da cartilaginous ragargaje. Ya kare da kwakwalwa daga amfrayo bawo. dabba size - daga 50 mm zuwa 9.8 m (tsakanin iyakar feelers located oppositely).

abinci

All octopuses - da yara. Su main abinci ne crustaceans, kifi, Shellfish. Common dorinar ruwa na kama ganima da dukan da tentacles. Rike suckers hadaya, ya cizon shi da baki. guba daga cikin salivary gland da dama a samar da rauni. Domin da dorinar ruwa ne halin da magana daga mutum fifiko a abinci da kuma hanyoyin da ta samun. Shellfish yana hudu nau'i-nau'i daga tentacles. Yadda yawa kafafu wani dorinar ruwa, kuma idan ya na da hannu, za ta gano on.

Clams a kan tafi

Mai nau'in rayuwa a cikin duwatsu, tsiren ruwan teku da kuma kankara. Favorite mafaka a cikin matasa dabbobi a cikin Far East, misali, suna da komai a bawo na scallops. Saboda gaskiya cewa octopuses ne mafi aiki da dare, su suna dauke nocturnal. Saboda haka, da yawa kafafu wani dorinar ruwa? Ta yaya ya yi amfani da wata gabar jiki? Bisa ga m, ciki har da m saman mollusks motsa a kan duk tun kimanin. A daidai wannan lokaci shi da hannu duk tentacles. Mutane da yawa sun gaskata cewa dorinar ruwa guda takwas kafafu. Duk da haka, wannan ba gaskiya ba ne. A lokacin da gudanar da bincike an gano cewa, Firaministan asirce biyu tentacles. Don matsawa gaba, ya yi amfani da sauran reshe. Movement "hannayensu" ne kamar irin waɗanda cewa yin swimmers. A biyu daga Hind reshe da ake amfani da su kewaya ta cikin teku bene. Tare da su taimako, molluscum kuma hawa a kan karkashin ruwa kankara. Saboda haka, yawan kafafu da dorinar ruwa - 2, duk sauran tentacles da aikin hannuwansu. Saboda gaskiya cewa jiki na mollusks m, za su iya shiga ta hanyar fasa da takware wanda girma ne da yawa karami fiye da nasu. Wannan damar su, su ɓõye a cikin daban-daban mafaka.

hali

A da yawa jinsunan da musamman gland da cewa samar da duhu ruwa - "tawada". A wani m translucent spots rataye a cikin ruwa ruwa da kuma kiyaye don wani lokaci ne m, kafin shi ba tsarma da ruwa. Sun gudu daga wani gudu, dorinar ruwa tawada samar da wani digon. Dabbobi suna da zuwa ranar babu yarjejeniya game da burin wannan hali. Cousteau bincike hypothesized cewa "tawada spots" a cikin dorinar ruwa ne mai irin karya hari ga abokan adawar, distracting su da hankali. Molluscs da wani kayan aiki don kare. Tentacle mollusk, riƙo da makiya za su iya zo kashe. Wannan shi ne saboda da karfi tsoka ƙanƙancewa. Wasu lokaci ware tentacle ya ci gaba da amsa ga tactile samuwar kasashe da kuma motsa. Shi ne tukuna wani ƙarin shagala ga waɗanda suka fitini dorinar ruwa.

bincike aikin

Ga mai dogon lokaci ban da wani daidai amsar tambayar, da yawa kafafu wani dorinar ruwa. Masana kimiyyar halitta da fiye da ashirin Turai cibiyoyin da hannu a cikin binciken na marine rayuwa, na dogon lokaci kallon hali na octopuses. Yana bincikar game da dubu biyu data. A lokacin da gudanar da bincike an gano cewa, biyu tentacles suna shakka harbawa. Kamar yadda wani janar mulki, dabbobi matsawa sannu a hankali. Amma idan akwai hadari clams iya isa gudun 15 km / h. Masu binciken sun ce da kwakwalwa ke aika wata sigina zuwa farkon na motsi, da hukuncin kamar yadda ta zuwa gudun, yanayi da kuma shugabanci na kowane eriya daukan kansa. Duk da haka, har ma da wadanda gabar jiki wanda ake tsage kashe daga jiki, ta ci gaba da daukar ayyuka da cewa an riga an kaddara kafin. Masana kimiyyar halitta ma an samu cewa dorinar ruwa ne daidai da kyau umurnin da wata gabar jiki na hagu da kuma dama bangarorin na jiki. Duk da haka, baicin ne har yanzu ba su da na uku gaban tentacle - shi ne aka yi nufi ga gabatar da bakin abinci. Kowane reshe yana da har zuwa 10 tysyach rabe ne m da wanda ƙi edible ko inedible.

Features

Sanin daidai da yadda da yawa ƙafa na wani dorinar ruwa, da kuma shi yana amfani da wata gabar jiki, da masu bincike tsunduma a cikin binciken na dabba m. Zoopsychologists la'akari da wadannan mollusks mafi fasaha daga dukkan halittu sun wakilan. Wadannan karshe su ne bisa m lura. Saboda haka, cephalopods da mai kyau memory, za a horar da, iya rarrabe lissafi siffofi: babban daga kananan, zagaye da square, a tsaye murabba'i mai dari daga kwance. Bugu da kari, sun samu amfani da mutane saukin gane wa anda suke ciyar da su. Idan ka ciyar da yawa lokaci da wani dorinar ruwa, shi zai zama hõrarriya. Wadannan clams daidai teachable.