Difference Between Convergent and Divergent Evolution. When considering living organisms, evolution can be defined as the development of differentiated organisms from less differentiated pre-existing organisms over the course of time. There are many sources, which provide evidence to the theory of evolution.
You're apparently differentiating between daycare and preschool, right? Private preschools (about $500 per month for three days per week, 9:00a to 1:00p) typically have a minimum age of 30 months (2.5 years) and potty-trained.
  In Kindergarten the student must reach age 5 by the 2nd of December. They can start at the beginning of the school year, but must be 5 by December 2nd.   Kindergarten â¦ is not required, but highly recommended. Preschool is good too.