Fish
Dissection
-Fish diets vary by their
species. Some fish like to eat worms, seaweed, plankton, and sometimes even
other fish. Fish in the ocean get their nutrition mostly from plankton,
seaweed, or the small creatures that live on seaweed.
-Fish are able to breathe
underwater with the help of gills, organs that contain blood vessels. Dissolved
oxygen passes through their gills, moving into their bloodstream and cells.
-The most poisonous fish
that exists is called the stone fish. This fish can cause paralysis, shock, and
even death if its sting is not treated within a few hours.
Sources-
Anal fin-keeps fish upright and helps with stability while swimming
Lateral line- subcutaneous cana that locates and detects animals and objects
Caudal fin- used for powerful swim strokes to propel the fish
Dorsal fin-gives stability and keeps fish upright when swimming
pectoral fin- used to swim and for stability, stopping, and thermoregulation
Major internal/external anatomy-
Swim bladder- hydrostatic balancing, sound production, reception, respiration, and gas secretion
Stomach- recieves food to be digested
Pyloric caeca- where digestion and fermentation takes place
Anus- end of the digestive tract where waste comes out from
Gonad- production of gametes
Aorta- supplies blood through the body
Gill rakers/filaments- water and oxygen exchange
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