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 Wallace Line is an imaginary boundary that runs between Australia and the Asian islands and mainland. This boundary marks the point where there is a difference in species on either side of the line.To the west of the line, all of the species are similar or derived from species that are found on the Asian mainland.he islands near the Wallace Line are also collectively called by a name to honor Alfred Russel Wallace. These islands are known as Wallacea and they also have a very distinctive set of species that live on them.