Re: pehali
yakhhhhhhhhhh… plz yaad na kerwaein… 
aray toad me kab hota hai vertebral column.. Punjab text book me nahi dikhaya gaya 
khair me confirm karunga.. wese sochne ki baat hai egg me se nikalte huye off-spring ki backbone kese ban sakti hai
Re: pehali
yakhhhhhhhhhh… plz yaad na kerwaein…
aray toad me kab hota hai vertebral column.. Punjab text book me nahi dikhaya gaya
khair me confirm karunga.. wese sochne ki baat hai egg me se nikalte huye off-spring ki backbone kese ban sakti hai