Cnidarians

jellyfish

Ma waena o nā mea ola mua loa a mākou e loaʻa ai ma lalo o ka moana i loaʻa iā mākou ka cnidarians. He phylum i haku ʻia o nā meaola wai a hele mai kona inoa mai kāna mau ʻāpana ponoʻī. Kapa ʻia lākou he cnidocytes a ʻo ia ka mea e kūikawā ai kēia ʻano. I kēia manawa ma kahi o 11.000 mau ʻano cnidarians i ʻike ʻia i hoʻokaʻawale ʻia i nā papa like ʻole, nā genera a me nā ʻano.

Ma kēia ʻatikala e haʻi aku mākou iā ʻoe e pili ana i nā ʻano āpau, ka nohona a me nā ʻano nui o nā cnidarians.

Nā ʻano nui o nā cnidarians

Ma waena o nā laha āpau e hana ana i kēia hui o nā holoholona ʻike mākou i nā koʻa, nā jellyfish, nā anemones a me nā kolone. Loaʻa iā mākou nā cnidarians i ka jellyfish nui o ka honua holoʻokoʻa. ʻO kēia nā ʻano kai i hiki ke hoʻopaʻa i nā wahi o ka wai maoli. Kūleʻa pinepine lākou a sessile ʻo ia ka mea i kāohi i ka neʻe. ʻOi aku ka liʻiliʻi o ka nui o kekahi o lākou a ua manaʻo ʻia he planktonic. Hoʻololi ka nui o kēia mau holoholona mai nā nui microscopic a i nā poʻe ʻē aʻe i ʻoi aku ma mua o 20 mau mika e hoʻopili ana i nā tentacles.

ʻO kēia nā meaola i loaʻa ka symmetry radial a me ka diblastic. ʻO kēia ke hoʻomohala ʻana mai nā lau embryonic like ʻole i ʻike ʻia ʻo ectoderm a me endoderm. ʻO ka mea e kū i ka hapanui o nā cnidarians ka cell stinging no lākou e loaʻa ai kēia inoa. E pili ana ia i nā cnidocytes. ʻO kāna symmetry radial ke ʻano o kekahi mau pūʻulu hoʻololi i ka biradial, tetraradial a i ʻole kekahi ʻano ʻano like. ʻO nā Cnidocytes nā hunaola i hiki ke kī a pana i kā lākou mea pio. Hoʻohana lākou i ʻelua e ʻimi a pale iā lākou iho mai nā mea hiki wawe ʻole.

Loaʻa iā lākou kahi pae o ka hoʻonohonoho pūnaewele no ka mea ʻaʻohe o lākou ʻola. ʻO ka ʻōnaehana digestive kahi ʻeke kūlike me ka puka komo hoʻokahi no ka meaʻai a me kahi puka no nā mea i lawe ʻole ʻia. Hele mai nā tentacles i kahi helu i ka nui o 6 a 8 paha. ʻOiai he mau meaola mua loa ʻaʻole lākou e hōʻike i ka cephalization. ʻO nā kumu o ke kino nui a mākou e ʻike ai ma loko o kēia phylum o nā holoholona: polyp a me nā jellyfish.

ʻO ka mea mua a mākou e ʻike ai ma waena o ka ʻokoʻa ma waena o ka polyp a me ka jellyfish ko lākou neʻe. ʻOiai he sessile ka polyp a he ʻano like kona paukūʻolokaʻa, he kelepono loa ka jellyfish a he ʻano bele kona. Pono e hoʻopili i ka polyp i ka papakū o ka moana honua a hoʻomau i kāna mau tentacles i luna. Ma ka ʻaoʻao ʻē aʻe, he mau tentacles ka jellyfish a kuhikuhi ʻia ka waha i lalo.

Hoʻokaʻina o nā cnidarians

papa cnidarian

Hana nā ʻano cnidarians he nui i nā kolone i hana ʻia e kēlā me kēia meaola i ʻike ʻia he zooids he jellyfish a me polyp-like a ʻelua. Ma waena o nā ʻano nui a nā cnidarians e hoʻokaʻawale ʻia ai iā mākou kekahi hiki ke hoʻohua i ka asexual ma o nā polyps a me nā mea ʻē aʻe i ka moekolohe ma o nā jellyfish. Hiki ke holomua kekahi o nā laha mai polyp a i nā jellyfish i mau manawa i ko lākou ola holoʻokoʻa. ʻO nā mea ʻē aʻe wale nō i ka manawa polyp a i ʻole ka pae jellyfish.

E nānā i nā papa nui o nā cnidarians:

Anthozoa

Hoʻopili kēia papa i nā holoholona āpau i ʻike ʻia e ka inoa o nā anemones, nā ʻākoʻako a me nā hulu kai. Hōʻike wale kēia papa i nā holoholona i loaʻa ka pae polyp. Hiki iā lāua ke noho mehameha a me nā kolone. Hiki i ka polyp ke hoʻohua i asexually a i ʻole moekolohe a hana i nā polyps hou. Sessile loa kēia mau holoholona a pono e makaʻala mau i ka ʻūlapa. ʻO nā tentacles i kū i kēia mau holoholona i loaʻa i ka nui o 6. Hoʻokaʻawale ʻia kona maikaʻi o ka gastrdrome e nā pākū i hoʻokumu ʻia i kahi o gastrodermis a me mesoglea. ʻO ka mesoglea ke kikowaena waena ma waena o nā hunaola embryonic ʻelua i kapa ʻia ʻo ectoderm a me endoderm.

Kubozoa

He papa ia i loko o nā cnidarians e hoʻopili ana i nā jellyfish pahu āpau a me nā nalo kai. Aia wale nō kēia ʻano i ka pae jellyfish. He cubic kona ʻano a ma laila mai kona inoa. Hoʻopili ʻia ka lihi o kēia mau jellyfish a pelu kāna ʻaoʻao i loko e hana i kahi ʻano pale. Penei, ʻO kēia hale e kū ai nā cubozoans i kapa ʻia ʻo velario. Kū i waho kēia mau holoholona no ka nahu ʻino loa ʻana ma aneʻi, hiki ke lilo i make ke nahu aku ia i nā kānaka.

ʻO Hydrozoa

ʻAʻole ʻike ʻia kēia pūʻulu holoholona ma lalo o ka inoa hydromedusae. I ka hapanui o kēia mau ʻano aia he kuapo i nā hanauna ma waena o ka pae polyp asexual a me kahi pae jellyfish moekolohe. Hoʻokumu pinepine ka pae polyp ma mai nā kolone o kēlā me kēia kanaka polymorphic. ʻO kēia ke ʻano o ko lākou ʻano a hoʻohālikelike lākou i nā kolone kūkulu o nā ʻano ʻokoʻa.

He pale ka jellyfish o kēia papa e like me nā mea ma mua a ʻaʻohe o lākou he cnidocytes i ke ʻano o ka gastrdrome. Loaʻa i kā lākou gonad kahi kumu ectodermal a ʻaʻohe hoʻi i loaʻa ka maikaʻi o ka gastrotherapy e septa.

Scyphozoa

ʻO kēia hui holoholona predominate lākou no ka loaʻa nui ʻana o kahi pae jellyfish. Liʻiliʻi loa kāna pae polyp. Ke hiki i ka pae jellyfish, ʻaʻohe o lākou pale a ke hōʻike nei i ka lole a me nā cnidocytes i loko o ka ʻōpū o ka maʻi kōpū. ʻAʻole like me ka papa hydrozoa, loaʻa kēia papa o nā cnidarians i ka maikaʻi o ke gastrdrome i hana ʻia e 4 septa. Mahalo i kēia hoʻokaʻawale ʻana, he symmetry waena ia e hoʻokaʻawale i ka ʻeke pūhaka i ʻehā mau ʻōpū gastric.

ʻO ka hānai a me ka hana hou ʻana o nā cnidarians

nā pae polyp a me nā jellyfish

ʻO kekahi o nā hiʻohiʻona nui i loaʻa i kēia mau holoholona ʻo ia ka hapanui o lākou he carnivores. No ka hopu ʻana i kā lākou pio e hoʻohana lākou i nā tentacles kōkua a nā cnidocytes e hoʻokuʻu i ka mea stinging a hoʻowalewale i ka mea pio.

No kāna hana hou ʻana, hiki iā ia ke hoʻohua i ka asexually a me ka moekolohe e nā ʻano hana like ʻole. I kekahi mau pūʻulu aia kahi hoʻololi ma waena o kahi manawa polyp o ka hānau hānau asstual a me kahi manawa jellyfish o ka hānau kolohe.

Lana koʻu manaʻo me kēia ʻike hiki iā ʻoe ke aʻo hou aʻe e pili ana i nā cnidarians a me nā papa nui a me nā ʻano e ola nei.


Hoʻopili ka ʻike o ka ʻatikala i kā mākou kumumanaʻo o ka hoʻoponopono hoʻoponopono. E hōʻike i kahi kaomi hemahema ʻaneʻi.

E lilo i mea mua e wehewehe

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  1. He kuleana no ka ʻikepili: Miguel Ángel Gatón
  2. Ke kumu o ka ʻikepili: kaohi SPAM, hoʻokele ʻōlelo.
  3. Legitimation: Kou ʻae
  4. Ka kamaʻilio ʻana o ka ʻikepili: ʻaʻole e hōʻike ʻia ka ʻikepili i nā ʻaoʻao ʻekolu koe ka mana o ke kānāwai.
  5. Pūnaewele mālama: Pūnaewele i mālama ʻia e Occentus Networks (EU)
  6. Nā Kuleana: I kēlā me kēia manawa hiki iā ʻoe ke palena, hoʻōla a kāpae i kāu ʻike.