TsimSecondary kev kawm ntawv thiab cov tsev kawm ntawv

Basic cov chav kawm ntawv thiab hom ntawm ntxhuab: Li thiab sib txawv

Ib tug ntawm cov hiob inhabitants ntawm peb ntiaj chaw yog hom heev heev ntawm mosses thiab Lichens uas npog loj cheeb tsam. Cov nroj tsuag koom los ntawm kinship nrog algae, tab sis muaj qhov sib txawv nruab nrab ntawm lawv.

Lichen symbiosis nruab nrab fungi thiab algae. Ntawm mushroom fibers loj hlob algae. Tej Lichen lub cev qauv enables cov nroj tsuag yuav nqus noo noo los ntawm fungal filaments thiab txheej txheem minerals yaj nyob rau ntawd nyob rau hauv cov organic tshuaj nrog ntsuab algae. Piv nrog ntxhuab, Lichens ntau undemanding, tab sis nrog tsis txaus noo noo wither thiab tuag nyob rau hauv lub qhaj ntawv ntawm lub teeb.

Mosses xav tau hauv ntxoov ntxoo thiab dej uas yog sucked tawm hauv av nrog tshwj xeeb tus Tsov tus tw fiber - rhizoids, uas ua raws li cov hauv paus hniav. Txawv tsiaj ntawm cov ntxhuab muaj ib tug txawv qauv, tab sis tag nrho lawv cov me nyuam los ntawm noob. Dej plays ib tug tseem ceeb luag hauj lwm nyob rau hauv tu tub tu kiv raws li nws yog nrog kev pab los ntawm cov txivneej tsis sib haum mus txog cov zygote poj niam thiab fertilize nws.

Tag nrho cov hom ntawm cov mosses me nyuam nyob rau ntawm ib nrab theem - lub tsim ntawm asexual nroj tsuag - protofitom tsis txawj ntawm tu tub tu kiv, uas zus capsule nrog noob. Raws li ib tug tshwm sim ntawm meiosis thiab daim ntawv muaj cov noob yuav ciaj sia proton - ib tug threadlike qauv uas yog tom qab hloov dua siab tshiab rau hauv tus poj niam los yog txiv neej tsob nroj - gametophyte. Yog li, muaj ib tug alternation ntawm kev sib deev tiam asexual.

Kis Moss cov nroj tsuag conventionally muab faib ua 3 chav kawm:

1. Antotserotovye. Mosses nyob rau hauv cov hoob kawm no muaj ntau tshaj 300 hom, lub ntsiab faib cheeb tsam - lub tropics. Antotserotovye mosses muaj ib tug peculiar qauv - genitals nyob rau hauv lub qis txheej nroj tsuag, constituting lub qhov hluav taws xob los ntawm uas protrudes ib tug elongated struchkovidny sporogony muaj eletary - threads pab tau zoo dua dispersion ntawm noob.

2. siab mosses sawv cev subclasses marshantsievye thiab jungermanniales. Tus thawj subclass npog nroj tsuag, lub gametophyte uas yuav varied rau hauv cov duab thiab muaj ib tug oily me ntsis lub cev thiab sporogonia txheej thaum ub thiab devoid ntawm partitions. Nroj tsuag ob subclass muaj ob peb oily corpuscles thiab heev ntau haiv neeg nyob rau hauv daim ntawv gametophyte. Liverworts tshwj xeeb heev nyob rau hauv lub tropics thiab subtropics.

3. Listostebelnye. Mosses deciduous hom muaj ob peb kaum ntawm txhiab (txog 95% ntawm cov mosses) thiab muaj xws li peb subclasses: brievye, sphagnum thiab Andreeva. Los ntawm Andreev yog me me nroj tsuag liab-xim av xim, loj hlob nyob rau hauv pob zeb. Rau sphagnum yus muaj los ntawm ncaj qha sporogonia qia thiab ib tug kheej kheej capsule. Brievye mosses yog heev ntau haiv neeg, tab sis tag nrho cov nroj tsuag muaj kev tshwj xeeb cov hniav rau spore dispersal.

Tag nrho deciduous los ua ntau nyob rau hauv lub hav zoov thiab swamps, nyob rau hauv sab qaum teb qhov chaw. Lub nto moo tshaj plaws yog cov ntxhuab Kukushkin flax, sphagnum leukobry - hom ntxhuab, yees duab uas tshwm sim raws li ib tug loj heev encyclopedias, raws li zoo raws li nyob rau hauv koj Diam duab sau.

Mosses ua si ib tug lossis loj lub luag hauj lwm nyob rau hauv lub tsim ntawm biocenoses thiab tsim ntawm peat, uas yog siv nyob rau hauv qhov kev lag luam. Sau npe ntawm tus tsim ntawm lub vaj thaj av siv ntxhuab, uas yog ib qho yooj yim loj hlob nyob rau hauv lawv tus kheej, uas siv cov poov xab, qab zib, kua mis nyeem qaub thiab ib feem ntawm cov nroj tsuag.

Similar articles

 

 

 

 

Trending Now

 

 

 

 

Newest

Copyright © 2018 hmn.atomiyme.com. Theme powered by WordPress.