Class 12-science

It may be possible to pursue a dietitian course without having studied biology in 12th standard, but it will depend on the specific program and institution you are interested in.
Some dietitian programs may require a background in biology or related subjects, while others may have prerequisites or bridge courses that you can take to acquire the necessary knowledge before starting the program.
It's important to research the requirements and prerequisites for the dietitian programs you are interested in to determine if you need to complete any additional coursework before applying. You may also want to consider speaking with an academic advisor or counselor at the institution you are interested in to discuss your options and determine the best path forward for your specific situation.

It depends on the specific university or college you are interested in pursuing B.Sc. Psychology from. In general, most universities or colleges do not require Psychology as a mandatory subject in the 10+2 level to pursue a B.Sc. In Psychology. The basic educational requirement to pursue a B.Sc. In Psychology is a 10+2 or equivalent examination from a recognised board with any stream (Science, Arts, or Commerce) as compulsory subjects. Some universities may also require a minimum percentage of marks in the qualifying examination or conduct an entrance examination to shortlist candidates for admission. However, having prior knowledge or experience in Psychology can certainly be an advantage in pursuing a degree in Psychology. It can also help you to understand the subject better and perform well in the course.

A general math student can opt for the Science stream after scoring 70% to 80% in SSC. However, the eligibility requirements and admission criteria may vary depending on the school, college or university they want to apply to. In many cases, students who want to pursue Science stream are required to have studied Science and Mathematics in their 10th grade or SSC level. So, it's essential to check the admission criteria of the institution you want to apply to. Furthermore, students who have not studied Science and Mathematics in their 10th grade or SSC level may have to undergo an additional bridge course to be eligible for admission to the Science stream. In summary, while it is possible for a general math student to opt for the Science stream, it is important to check the eligibility requirements of the specific institution you want to apply to.