1. Introduction to the Arthropoda . . . the REAL rulers of the Earth. . .
Ch. 39
Introduction to the Arthropoda
. . . the REAL rulers of the Earth. . .
                                                                                                               

5. Arthropoda: Chelicerata: Class: Merostomata

6. Class: Arachnida Scorpions, Ticks, Mites, Spiders

7. Class: Arachnida Scorpions, Ticks, Mites, Spiders
House Dust Mite
Black Widow Spider

9. Arthopoda: Crustacea Class: Crustacea

11. Arthropoda: Uniramia Class Chilopoda (Centipedes)

12. Arthropoda: Uniramia Class Insecta

13. Arthropoda: Uniramia Class Diplopoda (Milliipedes)

14. Phylum Echinodermata

15. Tube Feet

16. Class Asteroidea: Sea Stars

18. Class Echinoidea: Sea Urchins & Sand Dollars

19. Class Crinoidea: Sea Lillies

20. Class Ophiuroidea: Brittle Stars

21. Class Holothuroidea: Sea Cucumbers

23. Phylum Chordata

24. Sub-phylum: Hemichordata

25. Chordata: Subphylum: Urochordata

26. Chordata: Subphylum: Cephalochordata

27. Chordata: SubphylumL Vertebrata
Class: Agnatha
Class: Chondricthys
Class: Osteichthys
Class: Amphibia
Class: Reptilia
Class: Aves
Class: Mammalia