This is useful class for PSI, PC, FDA, SDA, Group -C, TET and CET. @siddannadalawayi Follow us on Join Telegram- https://t.me/siddannad1994 Facebook – https://www.facebook.com/Siddanna-Dalawayi-410792445796056/ Instagram- https://instagram.com/dalawayisiddanna?igshid=1ipaf080 https://youtube.com/playlist?list=PLqAtML-et80Akr6gaxh5kzASR0NW_1I7D Biology class. source