Biology

Zotsatira za Kudula Mitengo pa Zamoyo Zosiyanasiyana Kuchuluka kwa kudula mitengo komwe kukupitilira komanso kofulumira padziko lonse lapansi kwakhala chinthu chachikulu chomwe chikudetsa nkhawa akatswiri a zachilengedwe, akatswiri a zachilengedwe, ndi opanga mfundo. Nkhalango, zomwe kale zinali zobiriwira padziko lonse lapansi, zikuchepa kwambiri chifukwa cha kudula mitengo, ulimi, chitukuko cha mizinda, ndi kusintha kwa nyengo. Kutayika kosalekeza kwa … Werengani zambiri

Ntchito ya Ma Enzymes mu Kagayidwe ka Ma Cellular Chiyambi Ma Enzymes ndi zinthu zoyambitsa zamoyo zofunika kwambiri pa moyo. Amagwira ntchito yofunika kwambiri pothandiza machitidwe osiyanasiyana a biochemical ofunikira pa kagayidwe ka maselo, komwe kumaphatikizapo machitidwe onse a mankhwala omwe amapezeka mkati mwa selo lamoyo kuti asunge moyo. Machitidwewa ndi ofunikira kwambiri pazinthu monga kupanga mphamvu, biosynthesis ya … Werengani zambiri

Njira Zosinthira Zinyama M'malo Okhala M'chipululu Zipululu ndi zina mwa malo ovuta kwambiri komanso ovuta kwambiri padziko lapansi, omwe amadziwika ndi nthawi yayitali youma, kutentha kwambiri, komanso zomera zochepa. Ngakhale kuti nyengoyi ndi yovuta, nyama zakuthengo zosiyanasiyana zasintha kuti zipulumuke komanso kuti zipitirire kukula m'malo okhala m'chipululu. Nkhaniyi ikufotokoza njira zosangalatsa zosinthira … Werengani zambiri

Kapangidwe ndi Ntchito ya Minofu ya Xylem ndi Phloem mu Zomera Chiyambi: Zomera, maziko a zamoyo zapadziko lapansi, zimachokera ku kuthekera kwawo kukhala ndi moyo ndikukula m'malo osiyanasiyana chifukwa cha netiweki yovuta ya minofu ndi machitidwe. Pakati pa izi, minofu ya xylem ndi phloem ndi yofunika kwambiri, imagwira ntchito yofunika kwambiri pakunyamula madzi, michere, ndi chakudya ... Werengani zambiri

Ubwino ndi Zoopsa za Uinjiniya wa Majini mu Mbewu Zachakudya Uinjiniya wa majini mu mbewu zachakudya wakhala chitukuko chachikulu mu sayansi yaulimi, kupereka mwayi wothana ndi kusowa kwa chakudya, kukulitsa phindu la zakudya, komanso kukhala ndi mphamvu yolimbana ndi tizilombo ndi matenda. Komabe, zoopsa zomwe zingachitike chifukwa cha zamoyo zosinthidwa majini (GMOs) zayambitsa mkangano waukulu ... Werengani zambiri

Zinthu Zachilengedwe Zomwe Zimakhudza Kuwonekera kwa Majini Kugwirizana pakati pa chilengedwe ndi mawonekedwe a majini ndi gawo lofunika kwambiri la zamoyo lomwe lasangalatsa asayansi kwa zaka zambiri. Majini a munthu, omwe ali ndi majini okwana 20,000 mpaka 25,000, amapereka chithunzithunzi cha chitukuko chathu, kapangidwe ka thupi, ndi khalidwe lathu. Komabe, si majini onsewa "omwe amayendetsedwa" kapena ... Werengani zambiri

Kugwiritsa Ntchito Biology ya Molecular mu Zaumoyo Biology ya Molecular, nthambi ya biology yomwe imakhudza maziko a mamolekyulu a ntchito ya zamoyo, yakhala maziko ofunikira pakumvetsetsa njira za moyo. Kugwiritsa ntchito kwake mu chisamaliro chaumoyo kwasintha momwe timapezera matenda, kuchiza, ndikuletsa matenda, kupereka mayankho olondola, ogwira mtima, komanso apadera. Nkhaniyi ifufuza ... Werengani zambiri

Mapangidwe a Cholowa cha Matenda a Majini Matenda a majini amatha kumvedwa kudzera mu sayansi yovuta ya majini, yomwe ndi kuphunzira momwe makhalidwe ndi mikhalidwe zimaperekedwera kuchokera ku mibadwomibadwo kupita ku ina. Cholowa cha majini chimatsatira machitidwe enaake, okhudzidwa ndi zinthu zosiyanasiyana monga mtundu wa jini yomwe ikukhudzidwa, malo ake pa ... Werengani zambiri

Udindo wa Tizilombo toyambitsa matenda mu Kuphika Chakudya Kuphika chakudya ndi njira yosangalatsa komanso yovuta yomwe yakhala ikugwiritsidwa ntchito ndi anthu kwa zaka zikwi zambiri kuti asunge, awonjezere kukoma, ndikuwonjezera thanzi la chakudya. Tizilombo toyambitsa matenda—tizilombo tating'onoting'ono, tomwe nthawi zambiri timakhala ndi selo imodzi monga mabakiteriya, yisiti, ndi nkhungu—timagwira ntchito yofunika kwambiri pakusintha kumeneku. Ntchito zawo za kagayidwe kachakudya zimayendetsa kayendedwe ka michere ya thupi … Werengani zambiri

Njira Zamakono mu Ukadaulo wa Zaulimi Mu gawo lomwe likusintha mofulumira la ukadaulo wa zaulimi, njira zamakono zikusintha momwe timalimira chakudya, kusamalira mbewu, ndikuwonetsetsa kuti chakudya chikhale chokwanira kwa anthu ambiri padziko lonse lapansi. Nkhaniyi ikufotokoza njira zatsopano zomwe zikusinthira ulimi, kuyambira zamoyo zosinthidwa majini (GMOs) mpaka ulimi wolondola, ... Werengani zambiri