1) What is a post-anal tail? What is it used for in aquatic chordates? How is it used in higher vertebrates? Do we have a post-anal tail? 2) Discuss the feeding process in Amphioxus. 3) What are pharyngeal gill slits? How are they used in Amphioxus? How were they used in the early fishes?
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In aquatic chordates, such as fish, the post-anal tail is used for locomotion, helping the organism to swim efficiently. Show more…
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CHORDATA QUESTIONS 1. List the four distinguishing characteristics of chordates. 2. Describe the function of Pharyngeal gills in tunicates 3. Describe the function of the Notochord in tunicates 4. Indicate the following characteristics of chordates: Type of symmetry. Fate of the blastopore. 5. Describe the trend from tunicates to bony fish in the: a) Number of gills b) Function of gills 6. In what ways is a vertebral column an improvement over a notochord
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What are pharyngeal gill slits? How are they used in Amphioxus? How were they used in the early fishes?
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