1. Kingdom Animalia

2. What are the characteristics of all of the members of Kingdom Animalia?
Eukaryotic cells
Multicellular
Are Ingestive heterotrophs – must actively take food into their bodies
Lack a cell wall and chloroplasts

3. Two divisions of Animals
Invertebrates – lack internal segmented backbone
Sponges
Jellies, coral, anemones
Worms
Round, Flat and Segmented (Earthworm)
Mollusks – clams, oysters, scallops
Arthropods
Spiders
Crustaceans
Insects
Echinoderms – starfish, urchins
Chordates – flexible support rod in back
Vertebrates – have segmented backbone
Fish
Amphibians – frogs and salamanders
Reptiles – turtles, snakes, lizards
Birds
Mammals

4. Body Symmetry Refers to how an object is cut across a central axis.
Bilateral symmetry – cut only 1 way into 2 equal parts
Radial symmetry – arranged in circle around central axis

7. The Earthworm
Earthworms are segmented worms due to the repeated sections in the organism.
Hermaphroditic – having both sexes
Complete digestive system – mouth to anus
5 hearts linking the dorsal and ventral blood vessels in a continuous loop = Closed circulatory system just like us
Nerve cord running along its belly (ventral side)

8. External Earthworm

11. Hearts
Clitellum
Intestine
Blood Vessels
Crop
Gizzard
Mouth