Assalam 3alaykom wa rahmato allah
Ani hotit makalat + molakhass biologya :
https://www.djelfa.info/vb/showthread.php?t=1788240
https://www.djelfa.info/vb/showthread.php?t=1788097
https://www.djelfa.info/vb/showthread.php?t=1788256
Bittawfik inchallah 
جزاك الله خيرا