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Kingdom Animalia

Kingdom Animalia. Classification. Domain: Eukaryota Kingdom: Animalia Cell Type: Eukaryotic/Animal Cell Number: Multicellular Mode of Feeding: Heterotrophic Carnivore (eat other animals) Herbivore (eat only plants) Omnivore (eat other animals and plants)

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Kingdom Animalia

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  1. Kingdom Animalia

  2. Classification • Domain: Eukaryota • Kingdom: Animalia • Cell Type: Eukaryotic/Animal • Cell Number: Multicellular • Mode of Feeding: Heterotrophic • Carnivore (eat other animals) • Herbivore (eat only plants) • Omnivore (eat other animals and plants) • Detritivore (scavenger, “lazy carnivores”) • Reproduction: Sexual • Oviparous – lays eggs • Viviparous – gives birth to live young • Special Features: Advanced nervous systems means cephalization (faces), brains, and motile (walk/run/swim/grab)

  3. Animal Organization • Cell Specialization • Cells are adapted for one job (digestion, transport, etc.) • Cell Differentiation • Cells look different from one another (muscle vs. skin cell) • Body Organization • Cells  Tissues  Organs  Organ Systems  Organism • Heart cell + other heart cells  Heart tissue + other heart tissue  Heart + veins/arteries  Cardiovascular system + other systems  Human

  4. Animal Organization (cont’d) • Asymmetry • no set structure to the organism (draw one) • Radial symmetry • Cut in half anywhere (like a pie) and both halves look the same (draw one) • Bilateral • Cut in half at one place and both halves look the same (draw one)

  5. Animal Classification • Vertebrates • Animals with a notochord (backbone) • Only one phylum- Chordata • Invertebrates • Animals with no notochord (backbone) • Lots of phyla - Most animals are invertebrates

  6. Animal Reproduction • Sexual with sperm (male) and eggs (female). Sperm + Egg = Zygote  Embryo  Fetus • The more advanced the animals, the more complicated sexual reproduction • Some animals exhibit metamorphosis in their life cycles • Complete metamorphosis – juvenile hatches as a larvae (ex: tadpole or caterpillar) and then develops into an adult that looks very different (ex: frog or butterfly) • Incomplete metamorphosis – juvenile hatches as a nymph, which is just a smaller version of the adult

  7. Animal Evolution – first to last • Invertebrates • Simplest Animals – Porifera (Sponges) • Asymmetrical; aquatic; filter feeders; sessile (do not move as adults); hermaphroditic (both male and female) • Nerves Evolve – Cnidaria (Jellyfish and Anemones) • Radial symmetry; aquatic; some sessile, some motile; specialized tissues for feeding and movement • Organ systems evolve – Nematoda, Annelida, Platyhelminthes (all Worms) • Bilateral symmetry; aquatic or terrestrial (land); motile; digestive and simple nervous systems • Cephalization (faces), Skeletons, and nervous systems evolve - Echinodermata (Starfish and Urchins), Mollusca (Clams, Octopus, Squid), and Arthropoda (Insects, Crabs, and Lobsters) • Bilateral or radial symmetry; aquatic or terrestrial; motile; digestive, circulatory, and sometimes complex nervous systems; insects are most common animals

  8. Animal Evolution- first to last (cont’d) • Vertebrates • Backbones and complex brain systems evolve – Chordata (Vertebrates) • Separated into five major classes – Fishes, Amphibia, Reptilia, Aves (birds), and Mammalia • Backbone allows for most complex brains; bilateral symmetry; specialized sensory organs (eyes, ears, antennae, etc); highly organized bodies • Mammals are considered “dominant”; especially humans

  9. Porifera - Sponges

  10. Cnidaria – Jellies and Anemones

  11. Worms (Nematoda, Platyhelminthes, and Annelida)

  12. Echinodermata – Seastars and Urchins

  13. Mollusca – Clams, Snails, Octopuses, & Squid

  14. Arthropoda – insects and crustaceans

  15. Chordata– VertebratesClass 1 - Fish

  16. Class 2 - Amphibia

  17. Class 3 - Reptilia

  18. Class 4 – Aves (birds)

  19. Class 5 - Mammalia

  20. Special Animal Characteristics • Animal Homeostasis • Ectotherm – Cold blooded (internal temperature changes with environment; lay in sun when cold, seek shade when hot) • Endotherm – Warm blooded (special adaptations to keep internal temp the same despite the environment; shiver when cold, sweat or pant when hot) • Cnidarian • Body Plan • Polyp- attached (draw) • Medusa- Free floating (draw) • Special Cell • Nematocyst – stinging cell

  21. Special Animal Characteristics (cont’d) • Chordata – Fishes • Bony or cartilaginous (sharks) • Chordata – Mammals • Live birth and mammary glands • Marsupials – mammals with pouches • Monotremes – rare mammals that lay eggs • Animal Behavior • Nocturnal – active at night; have adaptations (like large eyes) to live in the dark • Diurnal – active during the day

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