A colony has a female reproductive ant, called a queen, who lays eggs. Those eggs will hatch into worker ants. Larger colonies of ants having millions of ants mostly have female ants making groups of workers, soldiers, or other special castes. Almost all ant colonies also have some fertile male ants called drones.
Rating Newest Oldest. Best Answer: The KâT boundary is a geological signature, usually a thin band, dated to 65.5 million years ago. K is the traditional abbreviation for the Cretaceous period, and T is the abbreviation for the Tertiary period. The boundary marks the end of the Mesozoic era and the beginning of the Cenozoic era, and is associated with the CretaceousâTertiary extinction event, a mass extinction. See the link below for more info. Source(s): http://en.wikipedia.org/wiki/K-t_boundar...
The Kindergarten Readiness Act of 2010 changed the Kindergarten and First Grade entrance date beginning in the 2012-2013 school year. >>. TK is the first of a two-year kindergarten program that uses a modified kindergarten curriculum that is age and developmentally appropriate. >>. Our SMMUSD TK standards represent a blend of Preschool Learning Foundations and the California Kindergarten Common Core Standards.