Naturalist - Fish dissection

Gills - maximized surface area and blood which extract dissolved oxygen from the water, and then release carbon dioxide through difussion

Heart

Liver - digestion, detoxification, energy storage, produces bile to break down fts

Stomach

Intestines

Gas/swim Bladder - maintains buoancy

Gonads - reproductive organs that release sex hormones

Gill Arch

Lateral line - sensory system that detects vibrations and changes in water pressure, helps in navigation and schooling

Pelvic fin - moving up and down the water column, braking

Pectoral fin - steering and manuvering

vent

Anal fin - stabilizer

Caudal fin - forward propeller

Dorsal fin: soft rayed - stabilizer and navigation

Dorsal fin: spiny rayed - defense, can be locked upright