The Animal Kingdom Invertebrates vs Vertebrates BRIEF for

The Animal Kingdom Invertebrates vs. Vertebrates (BRIEF for EOC)

Discussion Topics 1. 2. 3. 4. 5. 6. 7. 8. 9. Body Plans/Symmetry Invertebrates and Vertebrates Jellyfish and Sponges Mollusks and Worms Arthropods Starfishes Amphibians and Fishes Birds and Reptiles Mammals

Characteristics of ALL Animals n n n Eukaryotic Multicellular Motility Reproduction Obtain Food/Heterotrophs

Body Plans and Symmetry n Many different body plans and types of symmetry that are adaptations. n Asymmetrical: no symmetry n n Radial Symmetry: parts branch out in all directions from a central line n n Sponge Jellyfish Bilateral Symmetry: two similar halves on either side of a central plane n Butterfly

Invertebrates and Vertebrates Invertebrates Vertebrates Sponges Fishes Worms Mollusks Amphibians Reptiles Arthropods Birds Insects Echinoderms Mammals

Sponges n n n Invertebrates Filter feeder Multicellular Sexual and Asexual Reproduction Asymmetrical body plans (many different shapes) Found in water

Jellyfishes n n Radial Symmetry Predators that capture or poison prey Nervous systems Sexual or Asexual reproduction

Worms n n Some are parasites Some have nervous and muscular systems and digestive systems

Mollusks n n n Use radula to scrape or cut food Most reproduce sexually Nervous system, circulatory system, respiratory structures (gills), excretory structures

Arthropods n n Segmented Body Joints Bilateral symmetry Exoskeleton n n Complex body systems n n Molt Nervous system Sexual reproduction Adapted to life on land, water or air Classes: Arachnids, Crustaceans, Insects, Millipedes, Centipedes

Echinoderms (starfishes) n n n Radial symmetry Internal Skeleton Spiny Skin

Fishes n n Aquatic vertebrates Fins (usually paired) Scales, Gills ECTOTHERMIC

Amphibians n n n Vertebrate Live in water as larva and land as adults Has lungs (small); some diffusion through moist skin No scales ectothermic

Reptiles n n n Vertebrate Dry, scaly skin Lungs Terrestrial (amniotic) eggs Ectothermic

Birds n n Maintain constant internal temperature (endothermic) Feathers 2 legs covered in scales Front limbs modified into wings

Mammals n n Hair Nourish young with milk Breathe air 4 chambered hearts