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.
There are seven species of sea turtlesâthe Kemp's ridley, olive ridley, loggerhead, hawksbill, flatback, green, and leatherbackâ and they live in most ocean waters around the world. Some of these ancient reptiles are homebodies, hanging out in shallow coastal waters their whole lives.