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.
Registration & Enrollment. Kindergarten - Children may enter kindergarten if they will be five years old on or before September 1st. First Grade - Children may enter first grade if they will be 6 (six) years old on or before September 1st, and have successfully completed kindergarten. All children who will be 6 (six) years old by February 1st must attend school. All children must attend school until they reach the age of 16 (sixteen).