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Vertebrates are

Vertebrates are. Animals with a backbone. Chordate. What are they- An animal that has, for al least some stage of its life, a dorsal hollow nerve cord; a notochord; pharyngeal pouches; and a tail that extend beyond the anus. Fishes.

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Vertebrates are

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  1. Vertebrates are Animals with a backbone

  2. Chordate • What are they- • An animal that has, for al least some stage of its life, a dorsal hollow nerve cord; a notochord; pharyngeal pouches; and a tail that extend beyond the anus

  3. Fishes • What are they- Aquatic vertebrates; most fishes have paired fins, scales and gills. Ectotherms (rely on behavior to help control body temperature) • Bilateral symmetry • Feeding- all modes • Circulation- 3 chambered heart, closed circulatory system with a heat that pumps blood around the body in a single loop • Ex: Jawless fishes, sharks, Bony fishes

  4. Agnathans • Characteristics- jawless fishes that have no true teeth or jaw. Lack vertebrae and instead keep their notochord as adults • Ex: lampreys and hag fishes

  5. Chondricthyes • Characteristics- fishes with skeletons that are build entirely of cartilage, not bone • Example- sharks, rays, skates, and sawfishes

  6. Osteichthyes • Characteristics- boney fishes whose skeletons are made of hard calcified tissue called bone • Example: flying fish, combtooth blenny, peacock flounder, most fishes

  7. Birds (Aves) • What are they- are reptilelike animals that maintain a constant internal body temperature (endotherms). They have a outer covering of feathers; two legs that are covered with scales and used for walking or perching; and front limbs modified into wings. • Bilateral symmetry • Feeding- carnivorous, herbivore, omnivore • Circulation- 4 chambered heart and two separate circulatory loops. Two ventricles and two atria . Closed system • Example- pelicans, parrots, birds of prey, herons, and ostriches

  8. Amphibians • What are they- a vertebrate that, with some exceptions, lives in water as a larva sn on land as an adult, breaths with lungs as an adult, has moist skin that contains mucus glands, and lack scales and claws Ectotherms (rely on behavior to help control body temperature) • Bilateral symmetry • Feeding- larva (herbivore or filter feeder) adult (carnivorous) • Circulatory- Double loop system, 3 chambered heart, two atrium and one ventricle • Example: salamander, frogs, cacillians (no legs)

  9. Reptiles • What are they- a vertebrate that has dry, scaly skin, lungs, and terrestrial eggs with several membranes. Ectotherms (rely on behavior to help control body temperature) • Bilateral symmetry • Feeding- Reptiles can be Carnivores, omnivores, and herbivores • Circulation- efficient double loop circulatory system. Most with one ventricles and two atria; Alligators have 4 chambers two ventricles and two atria

  10. Mammals • What are they- vertebrate with hair, the ability to nourish their young with milk, breathe air, have four-chambered heart and endotherms that generate their body heat internally. • Bilateral symmetry • Feeding- filter feeders, herbivores, carnivores, omnivore • Circulatory- two completely separate loops with a four chambered heart. Two ventricles and two atria. • Examples: Monotremes-egg laying mammals; marsupials- young develop in an external pouch; placental- mother exchanges nutrients in the womb

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