a marine biologist is just a biologist that works in the water and has nothing to do with being in the marines. so yes you can be a marine biologist without being in the marines.
what DO marine biologists do ?!?!!?
Answer.
They study the plant and animal life in the oceans. They collect data and if a marine animal is sick they take it in and help it get better.
i would do great at school and try your best it is your future and really care about life
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go to a school that has marine-related programs. Or a school that is specially involved in marine...