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.
In public schools, preschool teachers are generally required to have at least a bachelorâs degree in early childhood education or a related field. Bachelorâs degree programs teach students about childrenâs development, strategies to teach young children, and how to observe and document childrenâs progress.