1. Kingdom Animalia

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

3. Two divisions of Animals
Invertebrates
Sponges
Jellies, coral, anemones
Worms
Round, Flat and Segmented (Earthworm)
Mollusks – clams, oysters, scallops
Arthropods
Spiders
Crustaceans
Insects
Echinoderms – starfish, urchins
Vertebrates
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.

5. 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
Nerve cord running along its belly (ventral side)

6. External Earthworm

7. Internal Earthworm