13.1 notesBy: Spencer and John
•   Vertebrates are animals with endoskeletons•   Fish, frogs, snakes, birds, dogs and humans are all vertebrates, or anim...
•   Most vertebrates are fish.•   Fish are the most diverse group of vertebrate animals.•   More than 20,000 species of fish...
•   Fish can be classified in 3 groups.•   Jawless fish, cartilaginous fish and bony fish.•   Jawless fish: Have tube shaped bo...
•   Most young fish develop inside an egg.•   most fish species reproduce sexually.•   A female fish releases the eggs into t...
• What is an animal with an endoskeleton?• A. Selena Gomez• B. Lizard• C.Vertebrate• D. Invertebrate
• What are most vertebrates?• A. Dogs• B. Fish• C. Adam Sandler• D. Birds
• True or False, most fish reproduce sexually.• A. True• B. False• C. Oprah
• True or False, 50% of fish are bony fish.• A. True• B. False
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13.1 john and spencer

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  • Transcript of "13.1 john and spencer"

    1. 1. 13.1 notesBy: Spencer and John
    2. 2. • Vertebrates are animals with endoskeletons• Fish, frogs, snakes, birds, dogs and humans are all vertebrates, or animals with backbones.• 5% of animal species are vertebrates.• Vertebrate animals have muscles, digestive system, respiratory system, circulatory system, and a nervous system with sensory organs.• The characteristic that distinguishes vertebrates from other animals is the endoskeleton, internal support system that grows along with the animal.• Endoskeleton: Allow more flexibility and ways of moving.• Vertebrates: Name for specialized bone called the vertebrate.• Vertebrate is also called the backbone.• Other bones such as ribs and skull protect organs such as heart, lungs, and brain.
    3. 3. • Most vertebrates are fish.• Fish are the most diverse group of vertebrate animals.• More than 20,000 species of fish.• Fish that live in water where sunlight does not penetrate need special organs to help them find food.• Most fish have an organ called a swim bladder, which allows them to control the depth at which they float.• Fish have sensory organs for taste, sound, and odor.• They have a sensory system unlike that of other vertebrates, an organ called a lateral line, allows fish to sense vibrations from objects nearby.• Fish remove oxygen form water with specialized respiratory organs called gills.• The gills are usually located on the side of their head.• In the gills oxygen dissolved by water moves into the fishes blood.
    4. 4. • Fish can be classified in 3 groups.• Jawless fish, cartilaginous fish and bony fish.• Jawless fish: Have tube shaped bodies, they dont have a stomach, they have no jaw bones, they dont have teeth and can not chew.• Jawless fish eat by biting into another animals body and sucking out flesh and fluids.• Cartilaginous fish: Their skeletons are made of flexible tissue called cartilage.• This groups includes sharks, rays and skates.• Rays are flat bodied fish that live most of their life on the ocean floor.• Whale sharks and basking sharks feed by filtering small organisms from the water as they swim.• Bony fish: They have bony skeletons and are covered with scales.• 96% of fish are bony fish.• Scales: Overlapping bony structures on most fishes bodies.• They have jaws teeth and several pairs of fins.• The colors and body shapes of bony fish are adapted to their environment.
    5. 5. • Most young fish develop inside an egg.• most fish species reproduce sexually.• A female fish releases the eggs into the water and a male will fertilize them• After the eggs are fertilized, the parent fish leaves the egg to develop and hatch on their own.• For sharks, the food supply is called the yolk and the protective covering is called the egg case.• Most fish eggs are surrounded by a soft egg case to let water pass through.
    6. 6. • What is an animal with an endoskeleton?• A. Selena Gomez• B. Lizard• C.Vertebrate• D. Invertebrate
    7. 7. • What are most vertebrates?• A. Dogs• B. Fish• C. Adam Sandler• D. Birds
    8. 8. • True or False, most fish reproduce sexually.• A. True• B. False• C. Oprah
    9. 9. • True or False, 50% of fish are bony fish.• A. True• B. False

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