Yomg’ir chuvalchangining har qaysi tana bo’g’imida qaysi organlar takrorlanadi?
1)qizilo’ngach; 2)qon tomiri; 3)ayirish naychalari; 4)ichak; 5)nerv tuguni; 6)tuxumdon; 7)muskullar

1. 2,7,5,3
2. 6,5,3,2
3. 7,1,3,5
4. 1,5,2,4
5. 4,7,1,6