They do not always come fully cooked. Sometimes they come fully alive, attached to the crab.
The reason they are offered fully cooked is so that people who want to eat them don't have to cook them at home -- crab legs can be hard to cook if you don't have the right hardware.
Crab meat is typically fully cooked in the canning process and should be safe for sushi.
typically no, but there are some cooked ingredients: the rice, always, and sometimes the fish. Unagi, BBQ eel is quite popular for example.
Sushi is cooked rice. It is often served with sashimi, which is raw fish. It can also be served with cooked types of fish. Most Eel and crab is fully cooked before being paired with the rice.
Yes. Nobody serves raw crab.
Cooked.
Yes, the crab stick, as it is commonly known, is made from surimi, which is cured. Within the curing process this is all cooked.
No. But it will keep better if it is. This can kill any bacteria that may spread to other foods before the crab is cooked. If you are careful, either way works fine.
Crabs has protein. In every 100g of blue crab (canned, raw, or cooked), it has 18g protein. Highest protein number is with queen crab (cooked) with 24g protein per 100g.
Yes they will be cooked to some extent during the canning process.
Get hermit crab food from the pet store.
Eel is typically smoked and cooked before being used in sushi. Salmon skin is usually cooked up as well. Crab usually means crab sticks, which are processed fish that is essentially cooked all the way through. Tomago, is a chicken egg omlette that is very good and completely cooked. And there are lots of vegetables that are used.
Most crabs are grey. They turn red when cooked. lol.