Dissected the frog

I know its one of the syllabus
And every form 5 need to do that
But don't u know dissect the frog that was still alive is very cruel?
The frog was suffering...but nobody knows....
Although I don't scared of looking at the frog...
But still can't understand
Why they put this as our syllabus...
Don't wanna talk much about that....
Still feel sorry to that frog....