Organization of the Animal Kingdom

What is an Animal? Active multicellular organism that eats primary producers or other consumers –All animals: Find food Avoid predators Reproduce –Lead to unique adaptations »Every behavior has a purpose

Major Phyla Protozoa –Single-celled Individual or in colonies –Aquatic Many are marine plankton –Reflects lifestyle, not taxonomy –Float with currents –Parasitic Some cause illness in a host

Major Phyla Phylum Porifera –Sponges Multicellular Marine

Major Phyla Phylum Coelenterata (sill-enter-ah-tah) –Jellyfish, anemones, coral –Mostly marine –Solitary or colonial –Colorful –Show major evolutionary advancements

Major Phyla Phylum Platyhelminthes (platy-hel-min-thez) –Aquatic and terrestrial –Flatworms –Some are parasitic Up to 40 meters

Major Phyla Phylum Aschelminthes (ask-hell-min-thez) –Aquatic and terrestrial –Round and unsegmented worms –Some are parasitic African Eye Worm – Spread by a fly

Major Phyla Phylum Annelida –Segmented worms –Aquatic and terrestrial –Microscopic to 3 meters –Show major evolutionary advancements

Major Phyla Phyla Arthropoda –More species than all other phyla combined –All environments –Insects, crabs, lobsters, crayfish, shrimp

Major Phyla Phylum Mollusca –Commonly marine –Soft body in a shell (usually) –Snails, clam, squid, octopus

Major Phyla Phylum Echinodermata –Marine –Spiny and brittle “Spiny Skin” –Sea stars, sea urchins, sand dollars

Major Phyla Phylum Chordata –Have backbones and endoskeletons All vertebrates –Fish, mammals, birds, etc. –Most complex