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.
Elementary education teachers are required to have a bachelor's degree and a teacher's license or certification. It is common for individuals pursuing a career in this field to earn their bachelor's degree in education or elementary education, and they are usually required to complete an internship where they teach under the supervision of a licensed teacher.