Transcript Arthropods

Kingdom: Animalia
Phylum: Arthropoda
Subphylum:Crustacea
Arthropods
Phylum Arthropoda
• Largest phylum of animals, 3 of 4 on Earth
• Marine: barnacles, shrimp, lobster, and crabs
• Segmented body and bilateral symmetry
• Chitinous exoskeleton leads to molting
• No Marine insects
Crustaceans (“insects of the sea”)
shrimp, crab, and lobster
• Copepods, krill (zooplankton)
• Shrimp and lobsters are scavenger
Gills
• 2 pair of antennae and segmented body
• Compound eye; 14,000 light sensitive units
• Mostly separate sexes, females store sperm