B.Sc

You can do either of them as both of them have excellent opportunities. But, there would be a difference in some or the other factors. Master's if you pursue even from the top colleges of the country, your compensation will not be as high as someone who has done his or her MBA from any top college of the country. This is not a gospel truth but this is most likely to happen in most of the cases. Now, with regards to work experience in MBA, believe me having and not having work experience have their own advantages and disadvantages.
There is no such hard and fast rule that work-ex guys will get higher salary than freshers. It completely depends on the company as many companies are there who only want freshers. So, it should be your choice as to what you want to do
* These career decisions are best taken by you after due deliberation and taking into account all the factors associated with it.

Eligibility for B.Sc zoology:
The minimum eligibility criterion for a student to take admission in B.Sc zoology is that the candidate must have studied physics, chemistry and biology in class XII and should have attained a minimum of 50% aggregate in 10+2 examinations. There is no eligibility percentage for Distance/Correspondence mode of education.
Bachelor of Science [B.Sc] (Zoology)
Admission Process:
The admission is based on the cut-off list issued by the university or college. The major admission process is only on the merit basis. A few universities like Banaras Hindu University also conduct their Undergraduate Entrance Tests (UET). Admissions are made according to merit in the entrance test, subject to fulfilling of eligibility requirements. The process starts in the month of May. The first step is to duly fill the admission form. It can be either online or offline depending on the institution. The admission to Bachelor of Science in Zoology is based on the marks attained by the students in class XII. Most colleges and universities release cut off lists after the students have filled the admission forms. If the aggregate percentage obtained by the student in the class XII examination satisfies the cut-off criterion issued by the college, he/she shall be granted admission based on the merit list. Bachelor degree in Zoology can also be awarded through distance education mode. There are a number of colleges and universities in India that offer bona fide education in Zoology through distance or correspondence mode.

Yuvaraja's College, Mysore offers various UG and PG courses under its curriculum viz. B.Sc/ BCA/ BBA/ M.Sc/ Integrated M.Sc/ MA/ MBA and Ph.D. Each UG course is of 3 years duration and each PG course is of 2 years duration except Integrated M.Sc which is of 5 years duration. Application form is provided at the college's office and candidates have to collect it in person by paying the application fee. Those who have passed 10+2/ PUC in Science stream from a recognised Board are eligible to get admission in B.Sc programme, whereas applicants who have passed the Pre-University examination in any stream are considered eligible to get admission in BBA programme.
For BCA minimum eligibility criteria is pass in PUC/ 10+2 with Mathematics as one of the compulsory subjects. Students who hold B.Sc or equivalent degree are considered eligible to get admission in M.Sc programme, for MA course candidates with BA or equivalent degree from a recognised university are eligible for admission.
Similarly, candidates who have Bachelor's Degree in any specialisation are eligible to get admission in MBA programme. Candidates with Post-Graduate Degree in relevant discipline from a recognised University are eligible to apply for admission to the PhD programme. Selection of the candidates for UG programs is done on the basis of their merit in the qualifying examination as per the norms of the University of Mysore. Admission to PG courses is given based on the students marks obtained in Bachelor's Degree course. Admission to Ph.D programme is granted as per the candidates merit in PG degree course and marks obtained in interview round conducted by the University of Mysore.