Anter
- Hōʻike hōkū Starfish
- Pehea ka hui ʻana o nā iʻa hōkū?
- ʻO oviparous ka starfish a i ʻole viviparous?
- He aha ka hana kope asexual o ka starfish?
- Hana maʻalahi Starfish
- Starfish a me ka hānau hou asexual
Starfish (Asteroidea) kekahi o nā holoholona pohihihi loa a puni. Me nā urchins, urchins a me nā kukama kai, hana lākou i ka hui o echinod germ, kahi hui o nā invertebrates e peʻe ma ka papakū o ka moana. He mea maʻamau ka ʻike ʻana iā lākou ma nā kapakai pōhaku ke neʻe lohi lākou. ʻO ia paha ke kumu e uku nui ai iā mākou e noʻonoʻo pehea ka hana kope ʻana o kanā leashes.
Ma muli o ko lākou ʻano o ke ola, hoʻonui kēia mau holoholona i kahi ala ʻano ʻē a hoihoi loa. Loaʻa lākou i ka moekolohe kolohe, e like me mākou, ʻoiai lākou e hoʻonui i ka asexual, ʻo ia hoʻi, hana lākou i kope o lākou iho. Makemake ʻoe e ʻike pehea? No laila mai haʻalele i kēia ʻatikala PeritoAnimal e pili ana hana kope o ka starfish: wehewehe a me nā laʻana.
Hōʻike hōkū Starfish
Hoʻomaka ka kope ʻana o Starfish ke loaʻa nā kūlana kaiapuni kūpono. Hana ka hapanui o lākou i ke kau wela o ka makahiki. Eia kekahi, koho nā mea he nui i nā lā loli. Akā, pehea e pili ana i ka hana hou ʻana o ka iʻa hōkū? Kou ʻano nui o ka hoʻohua hou he moekolohe a hoʻomaka ia me ka ʻimi no kēlā me kēia kāne o ka wahine ʻē aʻe.
keia mau holoholona kai he mau kāne ʻokoʻa, ʻo ia hoʻi, aia nā kāne a me nā wahine, me kekahi mau hiʻohiʻona hermaphrodite.[1] Ke nānā nei i nā ala o nā homona a me nā kemika ʻē aʻe[2], hoʻonoho ʻia ka iʻa hōkū i nā wahi maikaʻi loa e hoʻohua ai. Hoʻokumu nā ʻano hōkū āpau i nā hui liʻiliʻi a ʻoi aku ka nui i kapa ʻia ʻo "hōʻuluʻulu ʻōpuʻu"kahi e hui pū ai nā kāne a me nā wahine. Mai kēia manawa, hōʻike kēlā me kēia ʻano i nā hoʻolālā pālua like ʻole.
Pehea ka hui ʻana o nā iʻa hōkū?
Hoʻomaka ka kope ʻana o ka starfish ke hui pū ka hapanui o nā kānaka i nā hui he nui e hoʻomaka i ke kaʻina o ke kolo ʻana ma luna o kekahi. e hoʻopā ana a e hoʻopili ana i ko lākou mau lima. Hoʻopili kēia mau pilina a me ka huna ʻana i kekahi mau mea i ka hoʻokuʻu pū ʻia o nā gametes e nā kāne ʻelua: hoʻokuʻu nā wahine i kā lākou mau hua a hoʻokuʻu nā kāne i kā lākou sperm.
Hoʻohui nā gamet i loko o ka wai, e hana ʻia nā mea i kapa ʻia hoʻouluulu kūwaho. Mai kēia manawa, hoʻomaka ka pōʻaiapuni o ka iʻa hōkū. ʻAʻohe hāpai: hoʻokumu a hāpai i ka wai a i ʻole, i kekahi mau ʻano, ma ke kino o ka makua. Kāhea ʻia kēia ʻano pālua pseudocopulation, ʻoiai he pilina pilikino akā ʻaʻohe komo.
I kekahi mau ʻano, e like me ka hōkū one (archaster maʻamau), hana pseudocopulation i loko o nā kāne. Ekahi kū ke kāne ma luna o ka wahine, ke kau i ko lākou mau lima. ʻIke ʻia mai luna, like lākou me ka hōkū he ʻumi mau kiko. Hiki iā lākou ke noho pēlā no hoʻokahi lā holoʻokoʻa, no ka mea uhi pinepine ʻia lākou me ke one. ʻO ka mea hope loa, e like me ka hihia ma mua, hoʻokuʻu nā mea ʻelua i kā lākou gametes a hana ʻia ka momona o waho.[3]
I kēia laʻana o nā hōkū one, ʻoiai ke pālua nei i kahi pālua, hiki ke hana ʻia i nā hui. I kēia ala, hoʻonui lākou i ko lākou manawa kūpono o ka hana hou ʻana, a me ka loaʻa ʻana o kekahi mau hoa i ka wā hānau like. No laila, ʻo ka starfish holoholona polygamous.
ʻO oviparous ka starfish a i ʻole viviparous?
I kēia manawa ua kamaʻilio mākou e pili ana i ka starfish a me kā lākou hana hou ʻana, e lawe mākou i kekahi nīnau maʻamau e pili ana iā lākou. ʻO ka hapa nui o ka starfish ka oviparous, ʻo ia hoʻi, hoʻomoe lākou i nā hua. Mai ka hui ʻana o ka sperm a me nā hua i hoʻokuʻu ʻia, hana ʻia nā hua nui. Hoʻokomo pinepine ʻia lākou ma ka papahele kai a i ʻole i kekahi mau ʻano, i ka hatching i nā hale o ko lākou mau mākua ma ko lākou mau kino. Ke kikoo lākou, ʻaʻole lākou e like me nā hōkū a mākou i ʻike āpau ai, akā larvae planktonic ʻauʻau kai kēlā.
Pālua nā larvae Starfish, ʻo ia hoʻi, ua mahele ʻia ko lākou kino i ʻelua ʻāpana like (e like me mākou nā kānaka). ʻO kāna hana e hoʻopuehu i ka moana, e noho kolone ana i nā wahi hou. I kā lākou hana ʻana i kēia, hānai lākou a ulu a hiki i ka hiki ʻana o ka manawa e ulu a makua. No kēia mea, poho lākou i lalo o ke kai a ʻeha a kaʻina o ka metamorphosis.
ʻO ka mea hope loa, ʻoiai he mea liʻiliʻi loa ia, pono mākou e ʻōlelo i kēlā kekahi ʻano ma waena o nā ʻano hōkū ʻo viviparous. ʻO kēia ka hihia o patiriella vivipara, nona nā keiki e ulu i loko o nā gonad a ko lākou mau mākua.[4] I kēia ala, ke kūʻokoʻa lākou mai iā lākou, ua loaʻa iā lākou ka symmetry pentameric (ʻelima mau lima) a noho i ka lalo o ke kai.
A e kamaʻilio ana e pili ana i ka starfish a me kā lākou hana hou ʻana, malia paha hiki iā ʻoe ke hoihoi i kēia ʻatikala ʻē aʻe e pili ana i nā holoholona kai laha 7 loa o ka honua.
He aha ka hana kope asexual o ka starfish?
Aia kekahi kaʻao laha ka nui o nā hōkū o ke kai hiki ke hana kope iā lākou iho ke waiho nei i nā ʻāpana o kā lākou mau wāwae. He ʻoiaʻiʻo kēia? Pehea e hana ai i ka hānau hānau hōkū asexual? Ma mua o ka ʻike ʻana he pono e kamaʻilio e pili ana i ka autotomy.
Hana maʻalahi Starfish
Hiki i ka Starfish ke hoʻohou i nā lima nalowale. Ke hōʻino ʻia ka lima i kahi pōpilikia, hiki iā lākou ke kaʻawale mai ia mea. Hana lākou i kēia, no ka laʻana, ke alualu kahi mea ʻino iā lākou a "hoʻokuʻu" lākou i kekahi o ko lākou mau lima i mea e hoʻokipa ai iā lākou ke pakele. Ma hope, hoʻomaka lākou e hana i ka lima hou, kahi hana kumukūʻai nui i hiki ke hala i mau mahina.
Hana ʻia kēia ʻano hana i nā lālā ʻē aʻe o ke aupuni holoholona, e like me nā moʻo, ka mea e lilo ko lākou huelo ke manaʻo hoʻoweliweli lākou. Kapa ʻia kēia hana he autotomy a he mea maʻamau ia i kekahi mau iʻa hōkū, e like me ka starfish kupaianaha (helianthus heliaster).[5] Eia kekahi, ʻo ke autotomy kahi hana nui no ka hoʻomaopopo ʻana i ka hānau ʻana o ka starfish asexually.
Starfish a me ka hānau hou asexual
Hiki i kekahi ʻano o ka starfish ke hoʻohou i ke kino holoʻokoʻa mai kahi lima kaʻawale, ʻoiai ma ka liʻiliʻi he hapalima o ka disk waena i paʻa. No laila, i kēia mea ʻaʻole kaʻawale nā lima e autotomy, akā ma muli o a kaʻina hana fission a fragmentation paha o ke kino.
Ua mahele ʻia ko lākou mau kino Starfish i ʻelima mau ʻāpana like. ʻAʻole wale lākou i ʻelima mau wāwae, ʻo kā lākou diska waena kekahi pentamer. Ke kū nā kūlana kūpono, kēia haki a wili paha ke kikowaena kikowaena i ʻelua a ʻoi paha mau ʻāpana (a i ʻelima), kēlā me kēia me kāna mau wāwae e kū pono ana. I kēia ala, hiki i kēlā me kēia ʻāpana ke hoʻoulu hou i nā wahi i nalo, e hana ana i hōkū holoʻokoʻa.
No laila, ʻo nā poʻe hou i hoʻokumu ʻia ʻokoʻa i kou makua, no laila, he ʻano hana kope asexual. ʻAʻole kū kēia ʻano reproduction starfish i nā ʻano āpau, akā i ka nui e like me ka ʻO Aquilonastra corallicola[6].
I kēia manawa ua ʻike ʻoe i ke ʻano o ka hana hou ʻana o ka starfish, ʻike paha ʻoe he mea hoihoi ia e ʻike i nā ʻano nīno.
Inā makemake ʻoe e heluhelu hou aku i nā ʻatikala e like me Hōʻike Starfish: wehewehe a me nā laʻana, Paipai mākou iā ʻoe e komo i kā mākou Curiosities ʻāpana o ka honua holoholona.