Ina coelenterates nike abinci: musamman Physiology

Ruwa tare hydra, jellyfish da murjãni - shi ne hali da coelenterates dabbobi da suke da kwayar. Wane irin rayuwa suke kai? A feed? Ina coelenterates nike abinci? Amsoshin wadannan da wasu tambayoyi za a iya samu a cikin labarin.

Janar halaye na coelenterates

Duk da cewa su ne kwayar, coelenterates ba kyallen takarda. Saboda haka, babu su kuma gabobin. Coelenterates hallmark ne gaban musamman Kwayoyin cewa, samar da biyu Layer jiki. A waje da ake kira ectoderm. Yana da aka hada da matsakaici, harbin, fata, tsoka, jima'i da kuma jijiya Kwayoyin.

Indodem - ciki Layer coelenterates jiki. Wannan wani bangare ne na jiki inda coelenterates nike abinci. Ka yi la'akari da physiological siffofin da wannan tsari ta hanyar da misali na ruwa tare hydra.

cavitary narkewa

Hydra ne ba su iya aiki motsi. The aiki na wani irin sucker suka yi tafin kafa, a gefen da wanda yake cikin bakin. An kewaye da tentacles. Ina coelenterates nike abinci? Wannan tsari zai fara a cikin jiki kogo.

Hydra rinjayar kananan crustaceans da kifi larvae amfani da harbin Kwayoyin. Bugu da ari feelers hakar motsa ta bakin cikin jiki kogo. Glandular Kwayoyin wani bangare ne na endodermal, ya zama ruwan dare musamman m, bayan da ta abinci karya cikin mutum guda.

salula narkewa

Wadannan tsarin, inda da abinci da aka narkewar coelenterates ne narkewa kamar Kwayoyin. Suna da flagella, wanda ƙirƙirar halin yanzu na ruwa. Tare da wannan abinci barbashi an kawo wa cell surface. Akwai zai zama na gaba mataki na ta tsakiyan nonon mata.

Narkewa kamar Kwayoyin ma da ƙarya kafar. Wannan fickle outgrowths cytoplasm. Sun riƙi da abinci, da kuma shi ne a cikin cell. Akwai, a cikin narkewa kamar vacuoles auku karshe tsakiyan nonon tsari. Undigested sharan kuma suke da daraja ta bakin.

Saboda haka, za mu fitar da siffa inda coelenterates nike abinci. Wannan tsari faruwa a matakai biyu. All coelenterates ne da yara. Tare da suka kamu da inna ganima harbin Kwayoyin. Tentacles cewa kewaye da bakinka, motsa shi a cikin hanji lumen. Akwai fara da farko mataki na narkewa, wanda culminates a cikin na musamman indodem Kwayoyin.