Video: Dab tsi ua rau lichen?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A lichen tsis yog ib yam kab mob uas feem ntau lwm yam muaj sia nyob, tab sis nws yog kev sib xyaw ntawm ob yam kab mob uas nyob ua ke sib raug zoo. Feem ntau ntawm lichen yog tsim los ntawm fungal filaments, tab sis nyob ntawm cov filaments yog algal hlwb, feem ntau yog los ntawm ntsuab alga los yog cyanobacterium.
Thiab cov lus nug yog, dab tsi yog cov khoom ntawm lichen?
A lichen yog ib yam kab mob txawv txawv vim nws muaj ob yam kab mob tsis sib xws, alga thiab fungus. Ob tug no cov khoom nyob ua ke thiab coj raws li ib tug kab mob. Thaum ob lub cev nyob ua ke hauv txoj kev no, txhua qhov muab qee qhov txiaj ntsig rau lwm tus, lawv hu ua symbionts.
Tsis tas li ntawd, peb cov kab mob dab tsi yog lichens ua los ntawm? Txhua lichen yog ua los ntawm ib tug kab mob (feem ntau yog ascomycete) thiab alga (ntsuab los yog xiav-ntsuab). Muaj yuav luag 20,000 lichens, txhua qhov sib txawv kab mob , tab sis tib tus khub algal tuaj yeem pom nyob rau hauv ntau qhov sib txawv lichens, yog li muaj ntau tsawg algae koom nrog.
Ntxiv mus, lichen tsim li cas?
Lichens yog tsim los ntawm kev sib xyaw ua ke ntawm tus khub fungal (mycobiont) thiab tus khub algal (phycobiont). Cov fungal filaments ncig thiab loj hlob mus rau hauv lub hlwb algal, thiab muab feem ntau ntawm cov lichen cov lub cev ntau thiab cov duab. Rau ib lichen yug me nyuam, tab sis cov fungus thiab alga yuav tsum sib cais ua ke.
Nyob qhov twg lichens pom?
Lichens muaj ntau loj hlob ntawm tawv ntoo, nplooj, mosses, ntawm lwm yam lichens, thiab dai ntawm ceg ntoo "nyob rau saum huab cua" (epiphytes) nyob rau hauv rain forests thiab temperate woodland. Lawv loj hlob ntawm pob zeb, phab ntsa, gravestones, ru tsev, nthuav tawm av nto, thiab hauv av raws li ib feem ntawm kev lom neeg av pob zeb.
Pom zoo:
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Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom