MRS. LUFF Unit #9 Animal Cards

1 st Characteristic of Animals Multi-cellular  Similar cells work together to perform life functions  Differentiation – cells develop into different kinds of cells  Skin cells  Gut cells  Brain cells

2 nd Characteristic of Animals Eukaryotic  Contain a nucleus and other cell parts

3 rd Characteristic of Animals Heterotrophs  Consume other organisms to get needed energy  Omnivore – consume plants and animals  Carnivore – consume animals  Herbivore – consume plants

4 th Characteristic of Animals Sexual Reproduction  Sperm fertilizes the egg  Zygote divides many times to form embryo Genetic diversity Some animals reproduce asexually as well  Hydra  sponges

5 th Characteristic of Animals Movement  To find food, shelter or mates  Some move only during part of their life cycle

6 th Characteristic of Animals Maintain Body Temperature  Two ways  Use energy released by chemical reactions Birds and mammals  Rely on environment Amphibians and reptiles

Invertebrates Characteristics 1. Porifera 2. Cnidaria 3. Platyhelminthes 4. Nematode 5. Echinoderma 6. Annelid 7. Mollusks 8. Arthropod No backbone Lack strong support smaller size 95% of animal species Two Main Groups

Vertebrates Characteristics Chordates Have backbone Animals have strong support  Larger in size 5% of animal species Two Main Groups - Continued

Characteristics Examples Marine Has pores  Por means little hole Asexual Reproduction  budding Ocean Sponges Porifera

Characteristics Examples Hollow Gut Tentacles Stinging Cells Marine Medusa type  Jellyfish Polyp type  Hydra  Sea anemones  Sea Fan  Coral Cnidaria

Characteristics Examples Simplest Worms Flat Body  Plat means flat  Helminthes means worm Definite Head Tapeworm Planaria Fluke Platyhelminthes

Characteristics Examples Round Body Lengthwise Muscles  “whip” movement Vinegar Eel Worm Pin Worm Heart Worm Hookworm Nematodes

Characteristics Examples Most Advanced Worms Segmented Body True Brain Earthworm Sandworm Leech Annelids

Characteristics Examples Mollusk means muscle Soft Body May Have a Shell  Bivalve, univalve, no shell Muscular “foot” Clam Snail Octopus Squid Mollusks

Characteristics Examples Spiny Skin Radial Shape Tube Feet Marine Sea Star Sea Urchin Sea Cucumber Sea Biscuit Echinoderm

Characteristics Examples Jointed Appendages Exoskeleton Largest Group of Animals  Crustacea – 2 body sections, 10 legs  Insecta – 3 body sections, 6 legs  Arachnids – 2 body sections, 8 legs  myriapods – segmented appearance, many legs Crayfish Grasshopper Spiders millipede Arthropod

Characteristics Examples Dorsal Nerve Cord Gill Slits Very Diverse  Fish – mucus and scales  Reptile – dry and scales  Amphibian – mucus  Birds – feathers  Mammals – hair, live birth Shark, perch, trout Turtles, snakes, lizards Frog, salamander Ostrich, robin, pheasant Dog, cat, whale, human Chordates