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Kally Morozin

  4     5 6

1.A moveable flap that covers and protects the gills.
3.The class of fish that sharks belong to.
7.The processs of male and female fish releasing their gamatesnear each other in water.
8.A system that allows fish to detect movements in the water.
10.The part of a fishes brain used to cordinate movement and balance.
11.The chamber of the heart that pumps blood from the heart to the gills.
12.A four-footed animal with legs that have feet and toes with joints.
1.The class of fish that a perch belongs to.
2.The chamber of the heart that receives blood from the body.
3.A tough, flexible material making up the skeletons or parts of skeleton of vertebrate endoskeletons.
4.A group of cells that develop from the nerve cord in vertebrates.
5.A small flat platelike structure near the surface of the skin of most fish.
6.A paddle-shaped structure on a fish used for balance, steering, and propulsion.
7.A gas-filled space that allows fish to control its depth in water.
9.A filtering unit within the kidney that helps to maintain the salt and water balance of the body and to remove cellular waste products from the blood.

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