Hello aspirant,

Yes, you can take it if it is allowed by your school.

Additional subject is the subject which a students opts after selecting the major 5 subjects.

Yes Biology can be taken as an additional subject but please remember that additional Biology means not the optional subject mentioned in the form during registration .

Also You have two options

If you would take Biology as main subject then you can take Math s optional , So what happen here in the subject you score more that will be counted as you final result

And if you would take Math as main subject then you can not Biology as optional

So here solution is that you should take Biology as main and Maths as optional and give extra effort to that subject that you want to opt either Math or Biology.

Hope this helps you

Feel free to ask any questions

All the best for your future plans