For this lab activity, you will create a
phylogenetic tree with 20 Sponge Bob
Characters and 35 different “shared
derived characteristics” for members of
the Animal Kingdom. Note if there are
any instances of convergent evolution in
these characteristics.

The lab must follow these keys:
-The tree is not so small and squished that I can’t read the names or see the characters.
-All 20 Sponge Bob characters are included
-All 35 traits/characteristics are used. Any instances of convergence are listed.
-All traits/characteristics are in the correct place and clearly describe the intended character.



Sponge Bob Characters:
• Sponge Bob Square Pants
• Squidward Tentacles
• Patrick Star
• Sandy Cheeks
• Mr. Krabs
• Pearl Krabs
• Gary
• Shark with fake arms
• Sheldon J. Plankton
• Mrs. Puff
• Karen
• Man-Ray
• Larry the Lifeguard
• Mermaid Main & Barnacle Boy
• Jellyfish Fields
• Whelks
• Bullworm
• Nematodes
• Potty the Parrot
• Madam Hagfish

SHARED DERIVED CHARACTERISTICS
• Bilateral Symmetry
• Spiny Skin
• Segmented Worms (Annelids)
• Eutherian
• True Coelom
• Jaws
• Round bodies(Pseudo-coelom)
• Radial Symmetry
• Crustacean
• Land-Dwelling
• Presence of a nucleus
(Eukaryotic)
• Multicellular
• No true tissues (Noneumetazoan)
• Swim Bladder
• Chordate
• Phylum Porifera
• Soft body(Gastropod)
• Osteichthyes
• Protist
• Tetrapod
• Spicules
• Cnidocytes
• Medusa Body Form
• Dinosaur
• Mammal
• Homeothermic
• Amniotic Egg
• Milk & Hair
• The Future of Animal Evolution
• Exoskeleton
• Ecdysis
• Deuterostome (Blastopore
becomes anus)
• Jawless Chordate
• Buoyant Liver
• Chondrichthyan