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 2010 Kindergarten Readiness Act, signed into law by Gov. Schwarzenegger, changed the kindergarten entry date from Dec. 2 to Sept. 1 so that children enter kindergarten at age 5. The law phased in the new age requirement by moving the cutoff date one month a year for three years.