Write the similarities and differences, internal and external structure of cancer.
| December 13, 2020 | education
These are animal arthropods.
The body of crayfish is divided into two sections: the cephalothorax and abdomen. The eyes and two right whiskers are located on the cephalothorax. The abdomen is segmented and covered with scutes. There are 8 pairs of limbs on the chest. There are claws.
Inside there is the digestive system, heart, gonad, abdominal nerve chain, gills, subpharyngeal ganglion, mouth, excretory organs.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
