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Biologiya

Mubodilai gazho dar shush va boftaho

mub-gaz

Harakathoi nafasgiri. Nafas giriftan va nafas barovardan yakdigarro mavzun ivaz karda, ba vositai shush guzashtani havo va avotozakunii shushro tamin mesozand.  Ivazshavii nafasgiri va nafasbaroriro markazi nafasgiri tanzim mekunad, ki on dar magzi darozruya joygir ast. Dar markazi nafasgiri impulsho muntazam ba amal omada, tavassuti asabho ba mushakhoi bayni qaburgagi …

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