Tissa Sir - Biology EP 31 | Environmental Biology 07

[@deepashisstory844]

Thank u sir 🥰(1:46:31 පරිසර සංරක්ෂණයට අදාල සම්මුති )

[@nalinvv]

🥰🙏

[@mavindichamathka6884]

thankyou so much sir... god bless you 😍

[@menurabalasooriya46]

Thank you sir

[@ThejaniPerera-px7mm]

Godak pin sirta❤

[@NILANGAPRASADNIUNHELLA-vh5cb]

sir unit 5 samayojanaya prajananayai dannoko pin

[@ChamithuKrishmina]

❤❤❤

[@ScienceStream_dinu]

❀ Thank you Sir💐 ❀°

[@s.sadewniperera8738]

Unit 10 dannako..please loku udawwak

[@Dilkiabeykoon]

Thank you sir❤❤🎉

[@blacky..5371]

Thanq sir

[@ChamodGanganath]

sar. marama watinawa.❤

[@universebeauty123]

🙏❤️

[@sjjayathilaka]

sir 10 padamath dannako loku pinak

[@ManjulaDasundepiction]

I would like to know more about "Dopamine" and how it's work?

[@NILANGAPRASADNIUNHELLA-vh5cb]

thanks pin

[@konarayasawathi567]

🙏🙏🙏🙏🙏

[@admrwalker8173]

Ane sir 10 weni padamath dannako😔

[@GeethikaRajarathne]

sir unit 10 dannko channel ekata

[@abhilashasithumina2078]

10 padama dannako sir

[@piumipramodya8070]

Tutes ganne kohomd🥺

[@mavindichamathka6884]

thankyou so much sir... god bless you 😍

[@surangabandara6345]

❤❤❤❤

[@J.KARUNARATHNA]

Thank you sir

[@Kaveesha-sw6fg]

Thanks sir 🙏

[@Kaveesha-sw6fg]

10 weni padamath dennako sir

[@dilanmadisanayaka9509]

Thank you sir

[@Tharushamalki]

Thank you sir