noun, Cell Biology. 1. a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials.
The most widely distributed of all sea turtles; found in the Gulf of Alaska and south of the Bering Sea in the northeastern Pacific to Chile in the southeastern Pacific. In the Barents Sea, Newfoundland and Labrador in the North Atlantic; around Argentina and South Africa in the South Atlantic.
Turtles are everywhere in and around the Dry Tortugas National Park. Named âLas Tortugasâ by Ponce de Leon in 1513, this scattering of small sand and coral islands approximately 70 miles west of Key West, Florida, are famous for the abundance of sea turtles that annually nest on them.