differentiate between Annelida and Arthropoda in terms of their body cavity .
Answers
• Both arthropods and annelids are invertebrates without endoskeletons, but arthropods have a chitinous exoskeleton, and the body shape is maintained through hydrostatic pressure in annelids.
• Arthropods have a chitinous cuticle while annelids have a collagenous cuticle.
• Annelid are worms, and do not have legs, but they have parapodia for locomotion, while arthropods have segmented appendages for locomotion.
• Annelids usually have a closed circulatory system while it is an open system in arthropods.
• The diversity is extremely high among arthropods compared to annelids.
Both Annelida and Arthropoda are composed of segmented animals. The main difference between Annelid and Arthropoda is that Annelida consists of a hydrostatic skeleton whereas Arthropoda consists of an exoskeleton made up of chitin. Animals in both phyla are subdivided into different classes based on their diversity.