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Questions and Answers
What is the main function of the chitinous exoskeleton in arthropods?
What is the main function of the chitinous exoskeleton in arthropods?
- To provide protection and rigidity (correct)
- To provide a site for muscle attachment
- To aid in digestion
- To facilitate gas exchange
What is the characteristic of the body wall in arthropods?
What is the characteristic of the body wall in arthropods?
- It is followed by stout bundles of smooth muscles
- It is dermal and followed by stout bundles of striated muscles (correct)
- It is largely composed of cartilage
- It is composed of striated muscles
What is the characteristic of the circulatory system in arthropods?
What is the characteristic of the circulatory system in arthropods?
- It is a mixed circulatory system with both open and closed components
- It is an open circulatory system with a dorsal heart and blood sinuses (correct)
- It is a closed circulatory system with veins and arteries
- It is a purely venous system
What is the characteristic of the midgut in arthropods?
What is the characteristic of the midgut in arthropods?
What is the characteristic of the excretory system in arthropods?
What is the characteristic of the excretory system in arthropods?
What is the characteristic of the nervous system in arthropods?
What is the characteristic of the nervous system in arthropods?
What is the primary function of the opithosoma in Chelicerata?
What is the primary function of the opithosoma in Chelicerata?
What is the characteristic of the body of trilobitomorpha?
What is the characteristic of the body of trilobitomorpha?
What is a characteristic feature of crustacean appendages?
What is a characteristic feature of crustacean appendages?
Which subphylum is characterized by the presence of parapodia-like appendages?
Which subphylum is characterized by the presence of parapodia-like appendages?
What is unique about the head of crustaceans?
What is unique about the head of crustaceans?
What is the name of the larval stage that hatches from a fertilized egg in crustaceans?
What is the name of the larval stage that hatches from a fertilized egg in crustaceans?
What is the primary function of the thorax in trilobitomorpha?
What is the primary function of the thorax in trilobitomorpha?
Which subphylum includes terrestrial forms such as Chilopoda, Diplopoda, and Insecta?
Which subphylum includes terrestrial forms such as Chilopoda, Diplopoda, and Insecta?
In which subphylum is the tracheal system used for respiration?
In which subphylum is the tracheal system used for respiration?
What is the posterior part of the trilobite's body?
What is the posterior part of the trilobite's body?
What is parthenogenesis?
What is parthenogenesis?
Why was Peripatus initially classified with molluscs?
Why was Peripatus initially classified with molluscs?
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