Biology

Bachelor of Technology.

no it is not necessary to have all this stuff. yu can simply apply to int. des.
my sister is also doing and she is from commerce background

Don't worry about math. Because, there are lots of courses and career paths for you after 12th without Mathematics too.
You can apply for various posts in Railways, Banks and so on or you can go for regular studies.Here is a list-
BBA
JOURNALISM AND MASS COMMUNICATION
BCA
BMM
BMA
HOTEL MANAGEMENT
LAW
ANIMATION
BCOM (HONORS)
FASHION DESIGNING
BCOM (MANAGEMENT)
BCOM (FINANCE)
BCOM (MARKETING)
EVENT MANAGEMENT
BCOM (RURAL MARKETING)
BCOM (EXPORT-IMPORT)
BCOM (ECONOMICS)
BCOM (MSSI)

Law is open for all streams and with your background in biology, you can also go for environmental law later. The scope of any degree is because of your learning and application in job. So equip yourself well with the skills and you will shine.

You can go for engineering, biotechnology, B.Sc agriculture etc.

depends upon u, if u r bad at maths u can go with bsc or software engineering

han, if u r well studied in 10th or have tendency to remember, it will be enough
I used to only read bio in 10th and idk how but it was converting into my mother tongue and again in English at my exam time, it was very interesting

yes you can do it .