There are alternative routes for individuals who have a bachelor's degree without graduating from a teacher education program, and thus without state teachers certification. You will have to contact the State Board of Education in the state you wish to teach in for detailed information. You can be certified to teach specific courses, through examination.
The best paying job you can get with a degree in biology is working as an biologist, a research technician for the government, or working as a biology teacher at the college level, for which you can get a master's degree or a PhD. in biology.
You can get a job for teaching history in school or maybe get a job for teaching at a hstorical program.
Nowadays, biology is integrated in a lot of engineering and science fields. You can find a job in genetic engineering, space studies, pharmaceutical companies, or as a lecturer if you are into teaching.
You can get teaching jobs with a studies degree. You can get very good pay teaching in labs or on college campuses or even some high schools. Teaching is a great job.
You can get multiple jobs with a bachelor's degree in Biology. You can work at a zoo. You can also work at a doctor's office and a hospital as well.
A degree in biology would suffice, but degrees are offered in marine biology which would allow for a better chance of a job in the field.
When applying for a teaching job you need to have a teaching credential in most states. If your degree is about PE or you have a major in multiple subjects then apply for jobs that will fit with you education or specialty.
Bare minimum requirement for a cellular biology job will likely be a B.S. in Biology, perhaps with a concentration in Cellular Biology. This though, depends on the job and it's requirements. Some of these jobs may require a post grad degree, like a M.S. in some sort of Biology to obtain a position.
Get a degree in a relevant field... such as agriculture, chemistry, or biology... and then apply for a job with them.
You could be a teacher in America teaching German or you could get a job in Germany. But there aren't many things you can do with a degree in language. :)
In most cases, you would need a BS in Biology. Depending on the requirements of the job, you may only need an Associates degree with extensive lab experience.
You'll need to have education classes, take testing for a credential, and get a teaching credential.