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.
As a result, it is a very important year for students and requires some special knowledge from teachers. Kindergarten teachers have a lot of the same responsibilities of other teachers but also have to take into account that many of their students will be experiencing school for the first time.