Higher mea kanu: spore a me ka hua

Higher kanu - kēia mau mea? Ueo i i i landfall a ua hakuloli i kā lākou hou kaianoho koholā. Aia, ua oi aku mamua o 300,000 ka? Ueo. Higher mea kanu i kapa hoʻohanohanoʻia vegetative nā loko, e like me ke aa, a pana, a i ka ia photosynthetic pigments: chlorophylls a me carotenoids.

Higher mea kanu no ka hapanui loa i ka luna 'amo'ōnaehana waiwai e hooponopono i ka ke omoāea o ka wai ma nā lau. kiekie ae kanu keena kuahene'aʻaʻa. Sporophyte ka i lanakila ma ke ola kalapona (koe wale bryophytes).

ua hoemi ia kekahi mau keena Postpenno gametophyte. Kino o ka moe, a asexual nā'ōlelo o multicellular meaola. Fertilization me ka complication ioeo pohaku la e hilinai aku ma luna o ka wai. Zygote haawi ala i ka multicellular embryo.

Higher ano honua kahi mea kanu i hana i ka bulk o ko ka Honua ka biomass - ma kahi o 90%.

Systematics o kiekie mea kanu

No ka mea kiekie oia ka mea kanu i aʻe ia i luna spore hua mea kanu.

Higher spore: rinieobraznye (wale wāwahie) psilotoobraznye (malamaia ma kahi o 20? Ueony), bryophytes (23-27 tausani? Ueony), plaunoobraznye (ma kahi o 1300? Ueony), hvoscheobraznye (ma kahi o 30? Ueony), Fern (ma kahi o 12.000? Ueo).

Higher mea kanu a ole spores Botany hui e like me ka inoa - kiekie spore. Mau nā nā a ianoiyuaa a? Ueony a me ka mea ole? Ueo. kiekie ae spore kino ua maheleia i luna-lepo lola honua māhele, a, e ulu vegetative nā loko. Ke ola kalapona ninoieo o ka alternation o hanauna: ka sporophyte a me ka gametophyte. Sporophyte ua maikaʻi ke kino, e noho ana no ka lōʻihi manawa (koe wale bryophytes). Ua hoʻomōhala ana i multicellular sporangia, ma hope o meiosis no i ua hana ku paa mau i haploid spores. Ka mea, i hookahi-aa?, Uuku nui, e halii mai iʻano nui ka makani a me ka germinate i loko o ka gametophyte.

Fertilization kiekie ae spore ia lŘlŘ wale nō i loko o ke alo o ka wai. E like me ka hoʻoponoponoʻana o Kamehameha o nā loko o nā'ōlelo maopopo bisexual mea kanu (a i na kane a me ka wahine aeee) a me ka homosexual (a he kane paha, he wahine aeee).

Hoopaapaa paha e kekahi, a me ka ia nui. Higher spore kanu i i ka ia hoopaapaa, i kapa ravnosporovyh a me ka poe me kekahi manaʻo hoʻopiʻi kū'ē - heterosporous. Ke kaumaha ma muli o ka nui maopopo microspores (liʻiliʻi nui) a me megaspores (nui).

Ua Ua manaoio aku i ka hua kanu lele 'ana mai Spore, maopopo Fern.

Higher hua mea kanu: pinofity (gymnosperms) - ma kahi o 800? Ueo magnoliofity (angiosperms) - 300 tausani? Ueo.

Higher hua mea kanu i hiki aku kona piko i loko o ka Mesozoic au mai, i ka wa a ke aniau i oi arid a me ke anu, ua he loli o ke kau. Currently, ka loa, he pono ole? Ueo o angiosperms.

Hua mea kanu i kekahi mau pono no kiekie ae spore. Ka mea, iloko o ka hookahi nā loko: aʻa, e pakele ai, hua. Ke kino Ua me ka nui loa ka ikaika ma mua o ia o ka spore, e like me ka mea ulu laau keena. Inā keia mea no ka nui loa o ka laau keena - make.

Hua kanu i wale nō heterosporous. Gametophyte e sporophyte? Acaeoey? A hanai aku i kona uku.

Propagation i wahi ma ka mea o na anoano i mea i hanaʻia multicellular embryos, i nā lako o ka mahuaola. Fertilization hua ma luna ma mua o pollination - ka hoololiia ana o ka pollen mānoanoa ko loko o ka seminal lā mua o ka hua. Pollination ua hanaʻia e ka makani, ka wai, na holoholona, a me nā mea kolo. Fertilization pohaku e hilinai wale ma luna o ka wai e like me ka kiekie ae spore. He manawa e vegetative keena o ka pollen i germinates ma ka pollen Tube.