1. Classification and Biology of Arthropods January 28, 2009

4. Classification ❖ Country--USA ❖ State--Texas ❖ City--Bryan ❖ Street--Not Telling ❖ House #--1313 ❖ Surname--Brundage ❖ First Name--Adrienne ❖ Kingdom--Anamalia ❖ Phylum--Arthropoda ❖ Class--Insecta ❖ Order--Diptera ❖ Family--Muscidae ❖ Genus--Musca (fly) ❖ Species--domestica (house)

5. Arthropods ❖ Bilateral symmetry ❖ Exoskeleton with chitin ❖ Externally segmented bodies ❖ Appendages modified for feeding ❖ Ventral nerve cord and dorsal brain

7. Arthropods ❖ Bilateral symmetry ❖ Exoskeleton with chitin ❖ Externally segmented bodies ❖ Appendages modified for feeding ❖ Ventral nerve cord and dorsal brain

8. No, you don’ t have to memorize the chemical structure N-Acetylglucosamine

9. Arthropods ❖ Bilateral symmetry ❖ Exoskeleton with chitin ❖ Externally segmented bodies ❖ Appendages modified for feeding ❖ Ventral nerve cord and dorsal brain

11. Arthropods ❖ Bilateral symmetry ❖ Exoskeleton with chitin ❖ Externally segmented bodies ❖ Appendages modified for feeding ❖ Ventral nerve cord and dorsal brain

12. Chewing Piercing/Sucking Siphoning Rasping Sponging

13. Arthropods ❖ Bilateral symmetry ❖ Exoskeleton with chitin ❖ Externally segmented bodies ❖ Appendages modified for feeding ❖ Ventral nerve cord and dorsal brain

14. Dorsal Ventral Medial Lateral

15. Dorsal Brain Ventral Nerve Cord

16. Classes of Arthropods Arachnids ChilopodsDiplopods Insects Crustaceans

17. Class: Arachnida ❖ Spiders, mites, ticks, scorpions ❖ Characteristics ❖ Chelicerae and Pedipalpi ❖ No antennae ❖ 4 pairs of legs ❖ Cephalothorax and abdomen

18. Modified appendages, usually predatory organs

19. Class: Arachnida ❖ Spiders, mites, ticks, scorpions ❖ Characteristics ❖ Chelicerae and Pedipalpi ❖ No antennae ❖ 4 pairs of legs ❖ Cephalothorax and abdomen

21. Class: Arachnida ❖ Spiders, mites ticks, scorpions ❖ Characteristics ❖ Chelicerae and Pedipalpi ❖ No antennae ❖ 4 pairs of legs ❖ Cephalothorax and abdomen

23. Class: Arachnida ❖ Spiders, mites ticks, scorpions ❖ Characteristics ❖ Chelicerae and Pedipalpi ❖ No antennae ❖ 4 pairs of legs ❖ 2 body regions: Cephalothorax and abdomen

24. Cephalothorax: Fusion of head and trunk

25. Any Questions?