Kingdom Animalia Overview Kingdom Animalia The Animal Kingdom

Kingdom Animalia Overview

Kingdom Animalia §The Animal Kingdom consists of invertebrates and vertebrates. §Invertebrates do not have a backbone. §Vertebrates have a spinal cord and a backbone. §Invertebrates make up the largest populations of the Animal Kingdom

Body Symmetry § Organisms with radial symmetry are generally circular in shape (flat or spherical). As you go out from the center in any direction, the animal is the same, like a sea star or jelly. § Organisms with bilateral symmetry are generally not circular and have two sides that are the mirror image of each other like a human. § Organisms that are asymmetrical have no symmetry at all. Like a sponge

Body Symmetry

Invertebrates § Phylum Porifera – Sponges § Phylum Cnidaria – jellyfish, hydras, corals, and sea anemones § Phylum Platyhelminthes Flatworms § Phylum Nematoda Roundworms § Phylum Annelida – Segmented Worms

Invertebrates § Phylum Mollusca – Clams, Oysters, Squid, and Octopus § Phylum Arthropoda – Arachnids, Insects, and Crustaceans, and Myriapods § Phylum Echinodermata – Sea Stars and Sea Cucumbers

Vertebrates §Fish §Amphibians §Reptiles §Birds §Mammals

Fish § Jawless fish § Cartilagenous fish § Bony Fish § Have swim bladder to control depth § Have spinal cord and backbone

Amphibian -lives in water and on land -cold blooded=ectotherm -smooth moist skin

Reptile lives on land -ectotherm -lay eggs -lungs -scaly skin -

Bird -feathers -warm blooded- endotherm -hatches from eggs

Mammal -carry babies and feed them milk -well developed brain -endotherm -hair -bats are mammals not birds