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.
The only group of snakes able to eat an adult human being are the largest constrictors (pythons and anacondas, all nonvenomous), which include the largest snakes in the world: Green anaconda Reticulated python