A biofilm is any group of microorganisms in which cells stick to each other and often also to a surface. These adherent cells become embedded within a slimy extracellular matrix that is composed of extracellular polymeric substances (EPS).
Career Requirements. Kindergarten teachers in public schools are required to have at least a bachelor's degree in education and teacher certification for the state in which they work. Certification typically requires candidates to complete student teaching requirements and pass any required professional exams.
License Requirements. Teaching in a public school requires a state license. State boards have varying licensure requirements; however, most require a bachelor's degree in elementary education. Aspiring elementary school teachers may also need to successfully complete skills tests in subjects like reading and writing.