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Biology chap 30 1&2

Across
Type of circulatory system in a fish
Eggs hatch outside the mother's body
In fish, the ____ mainly processes smell
Fish that live most of their lives in fresh waters, but reproduce in the ocean
Fish that live most of their lives in the ocean, but reproduce in fresh water
Bony fish class
Shark class
Sharks are representatives of ____ fish
Supporting rod that runs just below the nerve cord
These help fish move
Have specialized organs that allow it to live out of water
Has a backbone
2 words - helps fish detect vibrations in water
Has a dorsal hollow nerve cord, notochord, pharyngeal pouches, and a tail
2 words - helps a fish adjust its buoyancy
Down
_____ oblongata
Salmon are representatives of _____ fish
Respiratory organ for fish
Lampreys are representatives of _____ fish
Help protect a fish
Eggs hatch inside the mother's body
Small, fish-like nonvertebrate chordates
_____ pouches
Young develop inside mother and get nutrition form her, not from the yolk of an egg
Part of brain that coordinates body of a fish
Filter-feeding nonvertebrate chordate
Segments of bone that make up a backbone
Aquatic vertebrates