Theca. various types of sheath in animals and plants: (1) A cell wall in certain amoebae (thecamoebae). (2) A chitinoid membrane in hydroid polyps; hence the division into the suborders Thecaphora and Athecata. (3) The connective tissue surrounding ovarian follicles in vertebrates (theca folliculi). (4) A tooth socket in the jawbone of mammals and crocodiles. (5) A capsule for spores in mosses.
LOCATION AND SIZE. Once known as Holland, the Netherlands is located in Western Europe. It borders Belgium to the south, Germany to the east and north, and the North Sea along its western coast. The country has a total area of 41,526 square kilometers (16,485 square miles).
The Netherlands, Aruba, and the Netherlands Antilles together comprise the Kingdom of the Netherlands. The Netherlands are located in Europe, while Aruba and the Netherlands Antilles are located in the Caribbean Sea and are jointly referred to as the âDutch Caribbeanâ.The Netherlands Antilles today consist of five island territories each with their own island government.t. Martin (18Â° N, 63Â° W), with its capital of Phillipsburg, is the largest island of the Windward Islands of the Dutch Caribbean. It is part of the northern group of the Lesser Antilles and has an area of about 86 kmÂ², of which the largest part is French-Caribbean territory.