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.
Description. Boa constrictors are pinkish or tan in color, with dark crossbands.Typically, they range in lengths from 20 inches (50 cm) as neonates to 13 feet (3.9 m) as adults.Larger members of the Boidae family have heat-sensitive pits on its head, but this snake has more simple heat-sensitive scales.escription. Boa constrictors are pinkish or tan in color, with dark crossbands.Typically, they range in lengths from 20 inches (50 cm) as neonates to 13 feet (3.9 m) as adults.