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.
What is the Appropriate Age to Start Preschool? I posed this very question to my Facebook friends about two weeks ago, the week before Preston turned two. The answers, to my surprise, were unanimous: Every Chicago parent I know started their kid(s) in preschool either right before, or right after they turned two. Yes, TWO.