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.
Must children attend kindergarten? Since school is mandatory for six-year-old students, parents and guardians must enroll their children in school once they reach the age of six (EC Section 48200). It is a local decision, with parental input, whether the six-year-old student will be enrolled in kindergarten or first grade.