The crop is really more for storage, so all it needs to do is stretch. The gizzard does most of the digestion and needs to be more muscular to help break down its food.
Yes they do. It is behind the gizzard. the gizzard is behind the crop the crop is behind...
the crop
yes a grasshopper has a crop. and a gizzard
The crop stores food and the gizzard is used to mechanically break food down into smaller pieces.
crop or gizzard
The gizzard of the worm has a harder exterior because it is more muscular.
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 thinner organ closer to the head. The crop stores food.
yes
In the gizzard.
The gizzard is used to manually grind and break down food and the crop stores it.
food
Frogs have a crop and a gizzard. A frog also has a organ called a polci.