We developed Natural Earth as a convenient resource for making custom maps. Unlike other map data intended for scientific analysis or military mapping, Natural Earth is designed to meet the needs of production cartographers using a variety of software applications. Maximum flexibility is a goal. Natural Earth Vector comes in ESRI shapefile format, the de facto standard for vector geodata.
A gizzard is a sack like organ at the back of the earthworms throat. The gizzard basically chews the earthworm's food since the worm doesn't have any teeth. The crop is a thin â¦ ner organ closer to the head. The crop stores food.
Gizzards are an inexpensive protein source. When you buy a turkey or a chicken, it is often stuffed with what are called giblets. One component of the giblets is usually the gizzard, which is a part of the bird's stomach. The bird swallows grit, which helps grind up food in the gizzard. This grit is removed from the gizzard before it is sold for food. While it may not sound appetizing to some, the gizzard provides a number of essential nutrients.