1. Arthropods
By: Mya Berger, Jenna Doty, Marvel McGowan, & Sydney Tressler

2. Body Symmetry & Locomotion
Largest Phylum
84%
Bilateral Symmetry
Exoskeleton, segmented appendages, muscles attached to skeleton
Walk, push, run, swim, fly, and burrow

4. Systems of Arthropods

5. Nervous/Response System
Present
Small but intricate
Brain
Bundles of neurons
Ventral nerve cords
Ladder structure
Branch out
Compound eye
Antenna

6. Digestive System One way system Specialized mouthparts to obtain food
Digestive glands
Foregut, midgut, and hindgut
Carnivores, herbivores, detritus feeders, filter feeders, and parasites

8. Excretory System Present Coxal gland Collect and excrete urine
Malpighian tubules
Lead to intestine
Green gland
Eliminate nitrogenous wastes as compounds insoluble in water

10. Circulatory System Open Body cavity full of blood Coelom
Empty space for organs
Arteries deliver blood into tissue spaces
May pass through gills to be oxygenated

11. Respiratory System Gills Covered by thin exoskeleton Tracheae
Tiny tubes, allow gases into body
Book lungs
Chitin, air circulates over blood filled plates

12. Support/Skeletal System
Exoskeleton
Chitin
Attachment to muscles
Prevent water loss
Molting
Segments or tagmata

15. Reproductive System Mainly internal and sexual Spermatophores
Most are gender specific
Some hermaphroditic

16. Classes Within the Phylum

17. Classes Within the Phylum: Crustaceans
Crabs, lobsters, crayfish, shrimps
Live in water
2 or 3 pairs of legs per segment
Scavengers
Feed on scraps
Predators
Catch prey

18. Classes Within the Phylum: Centipedes
1 pair of legs per segment
Called 100 legger
Detect prey with antennae
Immobilize prey with venom (poisonous)
Eat soft bodied insects

19. Classes Within the Phylum: Millipedes
Have 2 pairs of legs
Called 1,000 legger
Plant eaters
Nonpoisonous

20. Classes Within the Phylum: Arachnids
Spiders, scorpions, ticks, mites
2 segments:
Fused head & Thorax
Abdoman
4 sets of 2 legs
Use fangs to consume fluids

21. Classes Within the Phylum: Insects
Beetles, butterflies, bees, grasshoppers
3 body segments
Head
Thorax
Abdoman
3 sets of 2 legs

22. Other Phylum Facts

23. Fun Facts Referred to as “jointed-legged” due to jointed appendages
Evolved more than 500 million years ago
Diverse

24. “What Is an Arthropod?” YouTube, 22 Apr. 2015, youtu.be/puKoq5fzyAg.

26. Works Cited
Ameen, Riaz. "Phylum: Arthropoda – Animals with Jointed Legs." Google. Google, 19 Feb
"Arachnids." UXL Encyclopedia of Science. Encyclopedia.com,
"Arthropods: Interesting Facts." Weebly. Weebly, arthropods5b.weebly.com/interesting-facts.html. n.d. Web.
Barnes, Robert D. "Arthropod." Encyclopædia Britannica. Encyclopædia Britannica, Inc., 24 Apr ,
Battista, Jeremy. "Phylum Arthropoda Circulatory System." Study.com. Study.com, study.com/academy/lesson/phylum-arthropod-circulatory-system.html.n.d. Web.
Battista, Jeremy. "Phylum Arthropoda Digestive System." Study.com. Study.com, study.com/academy/lesson/phylum-arthropod-digestive-system.html.Web.
BIOZOOM. "PHYLUM ARTHROPODA CHARACTERISTICS- CLASSIFICATION." BIOZOOM. Blogger, Web.
"Cryptopid Centipede Bug Information." Insect Identification - Identifying Bugs of North America. Web.
"The Digestive System and Its Arthropoda Phylum." Weebly. digestivemack.weebly.com/arthropoda.html.N.p., n.d. Web.
The Gale Group Inc. "Arthropoda." Animal Sciences. Encyclopedia.com,
"Insects." Kids' Games, Animals, Photos, Stories, and More. NATIONAL GEOGRAPHIC SOCIETY, NATIONAL GEOGRAPHIC PARTNERS, LLC., 09 Nov kids.nationalgeographic.com/animals/hubs/insects/.Web.
Lepore, Taormina. "Phylum Arthropoda Nervous System." Study.com. Study.com, study.com/academy/lesson/phylum-arthropod-nervous-system.html.n.d. Web.
Libretexts. "15.3: Flatworms, Nematodes, and Arthropods." Biology LibreTexts. Libretexts, 13 Jan bio.libretexts.org/TextMaps/Map%3A_Concepts_in_Biology_(OpenStax)/15%3A_Diverstity_of_Animals/15.3%3A_Flatworms%2C_Nematodes%2C_and_Arthropods.Web.
Mcwdn. "Insects." INSECTS. n.d. Web.

27. Works Cited
Newman, William Anderson, Kathleen Elizabeth Conlan, Isabella Gordon, James Green, and Edward L. Bousfield. "Crustacean." Encyclopædia Britannica. Encyclopædia Britannica, Inc., 27 Aug
Understanding Evolution. "Bilateral (left/right) Symmetry." Bilateral (left/right) Symmetry. evolution.berkeley.edu/evolibrary/article/arthropods_04.N.p., n.d. Web.
Wikipedia. "Millipede." Wikipedia. Wikimedia Foundation, 29 Sept en.wikipedia.org/wiki/Millipede.Web.