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.
The traditional educational route to teaching at the kindergarten, elementary, middle or secondary school levels is to earn a bachelor's degree from an approved teacher education program. In addition, all would-be public school teachers must become licensed in their state before beginning employment.