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Fishes - Page Text Content

BC: The End

FC: Sergi Carrasco Ana Cecilia Chavarria Ms. Iliana Olvera May 4, 2011 Honors Biology II | Fishes

1: Fishes are aquatic vertebrates; most fishes have paired fins, scales, and gills. There is a great diversity of fishes, and some of them may be not very similar. The fins in fish are used for movement, scales for protection, and gills for exchanging gases. | What are Fishes?

2: Jawless Fishes | Don’t have true teeth or jaws. Their skeletons are made of fibers and cartilage. They lack vertebrae, but instead keep their notochords as adults. They are divided into two classes: lampreys and hagfishes.

4: Sharks and their Relatives | The class Chondrichthyes contains sharks, rays, skates, and a few uncommon fishes such as sawfishes and chimaeras. Chondros is the Greek word for cartilage, so that the skeletons of these fishes are made completely of cartilage, not bone. They have toothlike scales covering their skin. May have torpedo-shaped bodies, large curved tails, and pointed snouts with the mouth underneath. | Southern String ray | Silky Shark

6: Bony Fishes | Are from the class Osteichthyes. The skeleton of these fishes is made of hard, calcified tissue called bone. All living bony fishes belong to a huge group called ray-finned fishes. The fin rays support the skin.

7: Flying Fish | Leafy Sea Dragon

8: Ecology of Fish | -Live in fresh water or ocean. -Freshwater fish can't tolerate the high salt concentration because their kidneys cant maintain internal balance -Ocean fish cant tolerate low concentration of salt in their bodies . -Some fish can live in both salt and fresh water. -Anadromous fishes live in fresh water and then travel to the ocean.

9: Bibliography | "Jawless Fishes." Chapter 3 - Jawless Vertebrates. Web. 3 May 2011. . "Sharks Pictures & Information." A Parent's Guide to Internet Safety ::Indianchild.com. Web. 03 May 2011. . "Fish." Kidport Home Page. Web. 03 May 2011. . "Bony Fish." Bellarmine University. Web. 03 May 2011. . Miller, Kenneth R. Prentice Hall Biology. Upper Saddle River, NJ: Pearson/Prentice Hall, 2008. Print.es el del libro

20: A family is pieced together with hope and faith. A family is quilted and bound with love and grace.

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