12 Questions
What is the approximate size of an Amphioxus?
5 cm
Where does the Amphioxus burrow in the sand?
Tail region
What is the main distinguishing feature of the Amphioxus among fish-like creatures?
No lateral fins and no distinct head
Which fin is strengthened by rods of connective tissue called fin rays?
Dorsal fin
What is found on each side of the Amphioxus' body called?
Metapleural fold
What covers the epidermis of the Amphioxus?
Cuticle
Where is the mouth located in an amphioxus?
At the center of the velum
What is the role of the gill slits in an amphioxus?
To filter out solid particles from the water
What is the function of the velar tentacles in an amphioxus?
To provide sensory protection to the mouth
Which structure separates the vestibule from the Velum in an amphioxus?
Oral hood
What is the function of the atriopore in an amphioxus?
To pass water used in respiration to the outside
What is the purpose of the epibranchial groove in an amphioxus?
To provide a lined ciliated epithelium
Test your knowledge on the characteristics of Amphioxus, a chordate with similarities to ancient vertebrate ancestors. Learn about its habitat, body structure, and behavior through this quiz.
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