Fact There are more than a million different kinds of animals on Earth. Taxonomy is the science of classifying organisms. Scientific names is based on the taxonomy of an animal species. Each animal has a two part name. (Genus and Species) Common name is the name of everyday conversation. Kingdom animalia share three traits Animals are made up of cells Animals can move about on their own Animals get their food form other sources Animals are classified into two groups: Vertebrate – an animal with a backbone Invertebrate - an animal without a backbone Animals are classified into three main classes: Birds – feathers, light bones, Fish – Scales , breathe through gills Mammals – mammary glands, females produce milk, have hair, teeth, 4- chambered heart, regulated body temperature. Animal life needs are Getting and using food Movement Circulation Respiration Growth and repair Secretion Sensation Reproduction Cell Division – Mitosis and Meiosis Cell Specialization – Tissue and Organs The five shapes of bone are: Short – cubed shaped Flat - skull Irregular – complex with varying shapes Sesamoid – small and embedded in tendons (small) Long - longer than wide legs Cartilage – rubbery tissue found at ends of long bones and between vertebrates Growth Plates – place where cartilage is formed in layers. These layers become bone and new layers of cartilage is formed. Repeats until adulthood. Marrow – yellow ( mostly fat) and red ( network of blood vessels and blood forming cells. Muscular System Skeletal System Digestive System Respiratory System Circulatory System Excretory System Lymphatic System Nervous System Integumentary System Reproductive System