Animals! Goal: Students will be able to list the characteristics of animals and identify the 3 types of symmetry

Vocabulary  Anatomy = study of structure of an organism  Physiology = study of the functions of an organisms structures

Characteristics of all animals

1.Heterotrophs Obtain energy by eating other organismsObtain energy by eating other organisms 2.Maintain Homeostasis bodies must be a stable environmentbodies must be a stable environment 3.Movement Can change location on their ownCan change location on their own 4.Multicellular 5.Eukaryotic

Symmetry  Science text – a balanced arrangement of body parts  Math text – the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point  Dictionary.com - The quality of being made up of exactly similar parts facing each other or around an axis.

Types of Symmetry

 Bilateral – one line that divides the body into symmetrical halves  Radial – many lines that divide the body into symmetrical halves  Asymetric – no lines that divide the body into symmetrical halves

Classifying Animals

 Invertebrates (No backbone)  Sponges (Porifera)  Cnidarians (Cnidaria)  Echinoderms (Echinodermata)  Flatworms (Platyhelminthes)  Roundworms (Nematoda)  Segmented Worms (Annelida)  Mollusks (Mollusca)  Arthropods (Arthropoda)  Vertebrates (backbone)  Chordates (Chordata)  Fish  Amphibians  Reptiles  Birds  Mammals