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).
Its capital is Amsterdam. Citizens of Netherlands use the Euro as their currency. Netherlands is located in the Europe/Amsterdam time zone. Residents mostly speak Dutch (official). Netherlands's GDP is 722,300,000,000. In addition, the land area of Netherlands totals 41,526 km2. The phone code prefix for Netherlands is 31. There are also 13,699,000 internet hosts in the country. Approximately 14,872,000 internet users reside in Netherlands. Netherlands phone lines include 19,643,000 mobile phones. There are 7,086,000 landline phones in Netherlands as well. Netherlands has 10 telecom operators which are: Altice, KPN, KPN Mobile, NetGuard, Scarlet, T-Mobile Netherlands, Telfort, Versatel, Vodafone Netherlands, Ziggo.