MUNDARIJA KIRISH………………………………………………………………………..2-3 ASOSIY QISM………………………………………………………………4-23 Poyaning morfologik tuzilishi va tiplari……………….............…....10Poyaning birlamchi va ikkilamchi anatomik tuzilishi……………..16Poyaning vazifasi va uning xilma-xilligi………………............…….18 Poyaning hayot kechirish davriga qarab turlari…………………...23XULOSA.............................................................................................................24 FOYDALANILGAN ADABIYOTLAR............................................................25