It not only gives us authority but the responsibility to take care of it since

It not only gives us authority but the responsibility

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It not only gives us authority but the responsibility to take care of it since we are able to do so 18 Review 1. What four characteristic physical features distinguish chordates from other animals? Nerve cord, notochord, pharyngeal pouches, post-anal tail 2. Which class of fish is not really a vertebrate? Explain. Jawless fish, they dont even have vertebrae 3. +20
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Elijah Hamilton 18C, Review Honor Integrity Discipline Excellence Cartilaginous fish Bony fish Has jaws and many use their jaws to capture food Have jaws, also have a second set of jaws called pharyngeal jaws to chew Has gills but no operculum Has gills and an operculum to cover them Skeleton made completely out of cartilage Bony skeleton Fins are covered in the same skin as the rest of their body Have membranous fins or lobe fins Use their large livers to maintain buoyancy Use a swimbladder to maintain buoyancy 4. Identify each fish as jawless, bony, or cartiliginous. a. Bony b. Cartilaginous c. Jawless 5. Explain the difference between the gill structures of bony fishes and cartilaginous fishes. Bony fish have a structure called an operculum which covers their gills, bony fish can also pump water over its gills by opening its operculum; cartilaginous fish lack operculum and must keep swimming so water keeps filtering through their gills 6. What is the function of the lateral line? It senses vibrations in the water 7. What type of reproduction and fertilization would a fish that produces a mermaid’s purse exhibit? Oviparous internal fertilization 8. How might shark fins be collected for shark fin soup in a responsible manner?
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  • Fall '19
  • Shark, Tetrapod, Elijah Hamilton

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