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Animal Classification

Animal Classification . By Mrs. Herman 2013. Radial Symmetry the animal can be divided into equal parts that arranged around central axis. Bilateral Symmetry can be divided into two parts that are nearly mirror images of each other. Asymmetry

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Animal Classification

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  1. Animal Classification By Mrs. Herman 2013

  2. Radial Symmetry the animal can be divided into equal parts that arranged around central axis. Bilateral Symmetry can be divided into two parts that are nearly mirror images of each other. Asymmetry cannot be divided into any two parts that are nearly mirror images of each other. Animals can be classified by what kind of symmetry it has.

  3. Kingdom Phylum Class Archaebacteria Porifera fish Cnidaria Eubacteria amphilbia Platyhelmenthes Protista Nematoda reptilia Kingdoms of life Chordata bird Animalia Annelida mammal Mollusca Fungi Arthropoda Echinodea Plantae

  4. Phylum Porifera • Examples: • Sea Sponges • Characteristics: • Asymmetrical • No tissues, organs or organ systems • All live in water

  5. Phylum Cnidaria • Examples: • Jellyfish, sea anemones, hydras and corals • Characteristics: • Radial symmetry • No organ or organ systems • All live in water

  6. Phylum Platyhelminthes • Examples: • Flatworms including tapeworm • Characteristics: • Bilateral symmetry • Have nerve, muscle and digestive tissue • Soft, flattened bodies • Digestive system only has one opening (mouth)

  7. Phylum Nematoda • Examples: • roundworm • Characteristics: • Bilateral symmetry • Have nerve, muscle and digestive tissues • Bodies are round and covered with stiff outer covering • Digestive system has two openings (mouth and anus)

  8. Phylum Mollusca • Examples: • Snails, slugs, clams, mussels, octopi, squid • Characteristics: • Bilateral symmetry • Bodies are soft • Digestive system with two openings • Body contains heart, stomach and other organs • Circulatory system contains blood but no blood vessels • Must remain wet

  9. Phylum Annelida • Examples: • earthworms, leeches and marine worms • Characteristics: • Bilateral symmetry • soft bodies • Repeating segments covered by a thin cuticle • Digestive systems have two opening • Circulatory system made of blood vessels that carry blood throughout their body

  10. Phylum Arthropoda • Examples: • Insects, spiders, shrimp, crabs • Characteristics: • Bilateral symmetry • Exoskeletons – thick, hard outer coverings that protect and support animals’ bodies • Jointed appendages • Segmented bodies

  11. Groups of Arthropoda • horseshoe crabs, spiders, tick, mites, scorpions (adults have 8 legs) • crabs, lobsters, copepods, barnacles, pill bugs. • millipedes and centipedes – many legs • Insects – 6 legs, 2 antenna, 3 body segments

  12. Phylum Echinodermata • Examples: • Sea star, sea cucumbers, sea urchins • Characteristics: • Radial symmetry • Echinoderm – spiny skin • Thousands of small muscular fluid-filled tubes called tube feet • Complete digestive system • Only live in oceans

  13. Phylum Cordata - Vertebrates • Characteristics: • Well developed organ systems • Digestive system with two openings • Circulatory system that move blood through the body • Nervous systems that include brains • 5 Major Groups: • Fish • Amphibians • Birds • Reptiles • mammals

  14. Fish • Most spend their entire lives in water • Contain gills for absorbing oxygen gas from the water • Paired fins for swimming

  15. Groups of Fish • Jawless fish – hagfish and lampreys • Cartilaginous fish – have skeletons made of cartilage and include sharks, skates, rays • Bony fish – have skeletons made of bone and include trout, guppies, tuna and thousands of others.

  16. Amphibians • Spend part of their lives in water and part on land. • Amphibians have skeletons make of bone and 4 legs. • Their skin is smooth and moist • Hearts have 3 chambers • Lay eggs without shells or coverings • Young live in water and have gills, adults develop lungs and live on land • Examples include frogs, toads and salamanders

  17. Reptiles • Skin is water-proof and covered in scales • 3 chambered hearts • Have lungs throughout their lives • Lay eggs with leathery shells • Eggs laid on land • Includes lizards, snakes, turtles, crocodiles and alligators

  18. Birds • Many birds make nests to hold their eggs • Eggs have hard shells • Many have unique calls or songs • Lightweight bones • Skin covered with feathers and scales • Two legs and two winds • Many can fly • Have beaks and do not chew their food • 4 chambered hearts

  19. Mammals • Have hair or fur • Tear and chew their food using teeth • Mammary glands that produce milk to feed young. • Most birth live young

  20. Groups of mammals • Marsupials – gives birth to live young but the embryo climbs into the mother’s pouch to continue its development. Examples include kangaroos, koalas, Tasmanian devils, and wombats • Monotremes – lays eggs and including only five living species: the duck-billed platypus and four species of echidna (also known as spiny anteaters). • Placental - all bear live young, which are nourished before birth by the placenta. Includes 4000 species, including rodents, bats, whales, elephants, shrews, armadillos as well as dogs, cats, sheep, cattle, horses and humans.

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