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.
Last updated: August 2016. Most preschools will start accepting children at around age 2 Â½, but that doesn't mean your child is magically ready for preschool when he reaches that age. Readiness for preschool has more to do with where your child is developmentally.