6 Questions
What percentage of all named species on earth are arthropods?
Over two-thirds
What is the body covering of arthropods?
Chitinous exoskeleton
What is the type of circulatory system found in arthropods?
Open type
What is the process of fertilization in arthropods?
Internal
What is the type of respiratory organs found in arthropods?
Gills, book gills, or tracheal system
What is the type of excretory organs found in arthropods?
Malpighian tubules
Test your knowledge of the largest phylum of Animalia, including their characteristics, body structure, and features. Learn about the organ-system level of organization, bilateral symmetry, and more. Identify the key features that distinguish arthropods from other animals.
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