2, shrimp, is a long-bodied animals living in the water, arthropod crustaceans, there are many types, including green shrimp, river shrimp, grass shrimp, crayfish, prawns, prawns, prawns, shrimp, shrimp, pipa shrimp, lobster and so on.
3, shrimp has a high therapeutic value, and used in traditional Chinese medicine.
4, shrimp body long and flat, exoskeleton with limestone, divided into two parts of the cephalothorax and abdomen. Cephalothorax covered by armor. Abdomen consists of 7 body segments. Cephalothoracic armor at the front end of a long, sharp, serrated frontal sword and 1 pair of compound eyes that can be rotated with a stalk. The shrimp breathes through gills, which are located on both sides of the cephalothorax and are covered by the carapace. The mouth of the shrimp is at the base of the cephalothorax. The cephalothorax has two pairs of antennae, which are responsible for smell, touch, and balance, as well as a masticatory apparatus consisting of large and small jaws. The cephalothorax also has 3 pairs of jawed feet, which help to hold food, and 5 pairs of stepping feet, which are mainly used for hunting and crawling. The abdomen has 5 pairs of swimming limbs and a pair of stubby caudal limbs. The caudal limbs and the last section of the abdomen merge into a tail fan, which controls the direction of the shrimp's swimming.