ʻai i - He aha ka keia? A piha Ka Ikepili o ka 'ole a me ka manao o ka pistil

Flower - ka loa, heʻe piʻoloke ihola hapa o ka hapa nui o ka laha 'ana o flora, a i keʻano o ke koho ana no ka palapala, a me kaʻono waihoʻoluʻu. Akā, pehea ka mea i na pua paʻi? Kēlā me kēia pua he stamens a me pistil - o kona reproductive nā loko.

He aha ka i kaʻai i?

ʻai i - he mohala hehee ai, oia hoi o ka helu ana o carpels. hiki ole kanu kekahi halawai me kekahi kanaka hookahi pistil, a me ka 2 a oi.

I ka haʻahaʻa o kona maʻamau inflated, kapa anuanu a me ka ovary, i smoothly hele i loko o kaʻololī kia ao a me ka stigma. Aia nō i ke ano e like me poppy, ma i ke kia ao i loko o kaʻai i kahi e, a me ka ovary hele koke i loko o ka stigma. I ka luna o ka pistil ua papahana e hei ai lakou pollen i pollination, no laila, i ke kinona o ka stigma mea he okoa - he hoku-hoʻokino, filamentous, hoe, feathery. Post kiʻekiʻe hilinaʻi nui ma luna o ka stigmas hiki i ka hoʻomaopopo, a hoʻopio i ka pollen mānoanoa.

Auhea na anoano?

ʻai i - he hua hale kūʻai. Wā e hiki mai anoano i loko o ka palapala o ka ovules i waiho i loko o ka ovaries o ka pistil. Ma pollination, pollen Pńk'pika ma luna o ke kia hohonu o ka ovary, e hana i ka anoano, a me ia iho me ka ovary ia iho i loko o ka fetus. I ka mea kumu ka mea, ua noʻonoʻo i ka loa nui hapa o ka pua.
All pua e māheleʻia i loko o bisexual, Māhū na wahine a me Māhū kanaka. Ka ohana bisexual nā rai, peas a me kamako iki. I hookahi-keka wahine mea kanu ma ka mohala i stamens, oiai Māhū kanaka - ka pistil. I waena o Māhū hiki hālāwai kaʻukama, kai buckthorn, popela maka. Nā pua o kēia mau mea kanu ke he kane, a he nawaliwali kekahi wahine.

Pehea pollinated pua?

Inā bisexual mea kanu a pau maopopo, e mahuahua ma ka kaʻina hana o ka pakiko-pollination, ka ia-ke keka Ua oi huikau. Ka loa, he pono ole kâne a me wâhine nā'ōpuʻu ulu ma ka like kanu (laau, laau uuku). Me ke kōkua o nā mea kolo pollen ua hoololiia mai ka kane pua i ka wahine pistil. Keia cucurbits, hazel a me ka kaʻukama. Dioecious mea kanu no hoi i ka poe uuku a me kane a me ka wahine pua ulu kaawale. Ka hapa nui o ia - elele o kūloko flora (Aspen (CO), popela, paʻapū, dandelion a me ka wilou).

Mai la i ka nīnau, "ʻai i - ia mea: he nui hui, o ka pua paha o ka hele pū ana me hehee ai o ka evolutionary kaʻina," ka mea hiki ke manao ia me ka pistil pollination mea hiki ole i ka rula. Akā, i ka evolutionary mahele o nā mea kanu i loko o ke kane a me ka wahine e lawe ana i ke ola ana o ke kanaka i kekahi mau hana a he leo, e like me popela maka fluff - me ke kōkua o ke kane laau hua hāʻule ma luna o nā wāhine o ka anoano.