Fill in the table “Internal structure of arthropods”.
October 30, 2020 | Education|
|Organ system||Structural features|
|Nervous system||Periopharyngeal nerve ring and abdominal nerve cord|
|Excretory system||Green glands in cancer, kidneys|
|Reproductive system||Male and female gonads|
|Digestive system||Mouth, pharynx, esophagus, stomach, intestines, anus|
|Respiratory system||Gills, pulmonary sacs, trachea|
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