Excretion for IGCSE part 3; Osmoregulation

[@Videos-ke7ey]

Thank you for sharing your great teaching. 😊

[@fatimaalamien8786]

Omg ur such a wonderful teacher, I wish I had discovered you earlier. I hope ur doing well.

[@haseebasim1673]

What’s the intro name?

[@TomDare]

I believe it's La-ti-da. (It's some free sample music I liked)