Home / Biologiya

Biologiya

Rastani chist? shakl va namud!

Rastaniho in yake az guruhi organizmhoi merusta (rastida meshuda) meboshad ki ba oilai on: Darakhton; Alafho; Obsabzho, Horho; Zamburugho meboshand. Bo nazardoshti davrai hayot doshtani rastaniho, yane rustidan az zamin, kalon shudan, gul kardan, bordor shudan, hosil-samara dodan va nobut shudan rastanihoro ba organi zinda hamroh menamoyand.   Boyad qayd kard, …

Mufassal »

Mohiparvari dar Tojikiston: narkh, namud va muammo!

riba-mohi-tajik

Agar dar jumhurii mo ba sohai mohiparvari diqqatu etibori jiddi doda shavad, solona to 5 hazor tonna gushti mohi istehsol kardan mumkin ast. In nishondod baroi tamini amniyati ozuqavorii mo khele ham musoidat menamoyad. Holo dar jumhuri parvarishi mohi dar sad muassisahoi kompleksi agrasanoati ba roh monda shuda, tanho dar …

Mufassal »

Miyondard – sabab va rohhoi tabobat

miyon-dard

Dardi miyon in bemories, ki novobasta az sinu soli kas paydo meshavad va azobe ki u ba inoson mediham ham imkoniyati kor nakardanro medihadu va ham asabhoro kharob mekunad. Sababi paydoishi dardi miyon gunogun meshavad va dar bayni az hama pahnshudatarin sabab in kajshavii sutunmuhra meboshad, ki dar natijai on …

Mufassal »

BIOLOGIYAI MOLEKULAVi

mol-bio

BIOLOGIYAI MOLEKULAVi, yake az faslhoi biologiya, ki ravandhoi dokhilii hayotro tadqiq mekunad. B. m. ba sifati sohai mustaqili ilm ibt. s-hoi 50 a. 20 dar natijai pesh raftani donishho oid ba sokht va amali chunin payvasthoi muhimi khimiyavi, az qabili safedaho va kislotahoi nukleat, ba vujud omadaast. Vazifai B. m. …

Mufassal »

BIOLOGIYA

biologiya

BIOLOGIYA (Biologia; az bio… va …logiya), majmui ilmhoest oid ba tabiati zinda. B. hamai namudhoi organizmhoi zanda – az virusho to odam, sokhtu funksiyahoi onho, inkishof, paydoish, aloqai bayni onho va muhitro meomuzad. Sistemai ilmhoi biologi murakkab buda, bo gunogunii hayoti rui zamin, usulho va maqsadi tadqiqi onho muayyan karda …

Mufassal »

Harakati khun dar ragho

xun-gardish

Fishori khun. Fishori khun dar devorhoi ragho bo quvvai kashishkhurihoi medachai dil paydo meshavad. Fishor dar raghoi gunogun yak khel nest. Fishori khun dar shohrag az hama baland buda, 115-130 mm sutunchai simobro tashkil medihad. Az sababi ba shokhaho judo shudani raghoi sharyon fishor past shuda, dar raghoi sharyoni borik 70-80 …

Mufassal »

Kori dil

dili-odam

Hosiyati avtomatikii dil. Dil dar holati nisbatan orom dar yak shabonaruz takhminan 100000 marotiba kashish mekhurad. Dar ayni hol vay qarib 10 tonna khunro chun nasos ba harakat medarorad. Kashishkhurii dilro mushakhoi dil ba jo meorand. On ba mushaki kundalangrakhi skeleti monand ast. Mushakhoi dil az nakhhoi makhsus iborat buda, …

Mufassal »

Eritrositho va khunguzaroni

erotricit

Sokht va vazifahoi eritrositho. Vazifai asosii eritrositho az uzvi nafaskashi ba tamomi hujayraho va boftahoi organizm kashonidani oksigen meboshad. Inchunin eritrositho dar dur kardani gazi duoksidi karbonat az boftaho niz ishtirok mekunand. Dar tarkibi eritrositho gemoglobin mavjud ast va surkhii khun ba on vobasta meboshad. Baroi hamin eritrosithoro hujayrahoi surkhi …

Mufassal »

Gardishi khun dar organizm

gardishi-xun-768x424

Uzvi gardishi khun. Ahamiyati gardishi khun. Sistemai uzvi gardishi khuni odam dil va raghoi khungardro dar bar megirad. Dil hamchun uzvi markazi, chun nasos kor karda, kashish mekhurad va khunro ba vositai raghoi khungard ba tamomi sathi badan mebarad. Dil harakati doimii khunro tamin mekunad. Dar holati az kor mondani …

Mufassal »

Tarkib va vazifahoi khun va plazmai on

tarkibi-xun-768x298

Ahamiyat va vazifahoi khun. Hun hamchun moei dokhilii organizm dar sistemai makhsusi khud harakat karda, vazifahoi zerinro ijro mekunad: naqliyoti, nafaskashi, kimiyovi, humorali, va gayraho. Tarkibi khun. Dar organizmi odami kalonsol qarib 5 litr khun mavjud ast. Hun hamchun boftai payvastkunanda az du qism iborat meboshad. Hangomi khunro ba probirka …

Mufassal »