Fill in the table “Features of the internal structure of fish”.
October 30, 2020 | Education|
|Organ system name||Structural features|
|Respiratory system||Represented by gills|
|Digestive system||It starts with the mouth, there are teeth in the mouth.|
|Circulatory system||They have 1 circle of blood circulation and 2 chambers in the heart|
|Excretory system||Paired kidneys are present|
|Musculoskeletal system||There is an axial skeleton represented by a spine, there are ribs, fins, a tail|
|Nervous system||Brain and sense organs|
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