1. Invertebrates

2. Key Vocabulary Bilateral symmetry- two mirrored sides
Use key terms listed on back of chart (Vertebrate side) if needed.
Bilateral symmetry- two mirrored sides
Radial Symmetry-more than two mirrored sides
Asymmetrical - no symmetry /can not draw a straight line to divide body

3. Porifera: Sponges The simplest invertebrates Asymmetrical
Have pores for filter feeding and breathing
Most live in oceans
Most cannot move

4. Cnidarians They have tentacles or stinging cells
Radial symmetry or asymmetrical
Soft bodied
They have a mouth
Most live in the ocean
jellyfish
Sea anemone
coral

5. Flat Worms (Platyhelminthes)
                                                             
Invertebrates that can regenerate lost parts.
Flat body
Bilateral Symmetry
Have sensory spots for detecting food.

6. Round Worms (Nematoda)
                                                             
Round Body
Bilateral symmetry

7. Segmented Worms (Annelida)
                                                             
They can grow back parts if they lose parts
Soft bodied
Segmented Body
Bilateral Symmetry
Have 5 hearts
Segmented

8. Mollusks Have Soft-bodies Bilateral Symmetry
octopus
Have Soft-bodies
Bilateral Symmetry
Have a shell made from minerals
A simple heart
snail
squid

9. Mollusk: Bivalve
Has 2 external shells

10. Mollusk: Gastropod Gastro = stomach, pod = foot
Has a radula (razor tongue for scaping)
Most have an external shell for protection

11. Mollusk: Cephlopod Cephlo = head, pod = foot
Feed using tentacles that grab their food
Have an internal shell
Have a heart

12. Echinoderms Radial symmetry Endoskeleton
Echino = spiny, Derm = skin (not really!)
Water vascular system
Have suction cup feet to walk
Use tubes to catch food to.
No heart

13. Arthropods There are 4 groups

14. Arthopods They have exoskeletons. Bilateral symmetry
Have 3 main segments (head, thorax, and abdomen)
Have compound eyes
Have jointed limbs (legs)
Have a heart