Pre-kindergarten provides learning to children who are 4 years old on or before September 1. Pre-kindergarten for three-year-olds provides learning to children who are 3 on or before September 1. Most programs are 3 hours but extended day is offered in some schools.
and Sub-species:-. 1  Boa. 2  Boa constrictor, Boa constrictor. 3  Boa constrictor amarali, Amaralâs boa. 4  Boa constrictor constrictor, Red-tailed boa. 5  Boa constrictor imperator, Common northern boa. 6  Boa constrictor longicauda, Tumbes Peru boa. 7  Boa constrictor melanogaster, Ecuadorian boa.
Boa constrictors, for example, do not lay eggs and instead welcome live young into the world. These massive reptiles, unlike pythons, are classified as being ovoviviparous, which means that their eggs emerge inside of the body -- specifically within the oviduct.