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Explain the evolution and the modification of fish's internal and external structure.
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- Draw the ‘mouth/head’ regions of the lamprey and dogfish, highlighting key differences with labels and/or notes. Please include the features specified below Lamprey – Oral sucker, gill slits, eyes, nostril, teeth, mouth, tongue, Dogfish – Gill slits, spiracle, ear, eye, mouth, ampullae of Lorenzini, jaw, teeth, nostrilsWhich structure of the ray-finned fishes allows for breathing in water while the fish is stationary? swim bladder operculum lateral line mucus glandsDescribe the major evolutionary innovations that distinguish the fishes from the amphibians.
- Tabulate differences lancelet and lamprey with regard to their habits , external characters, muscles and skin?Tabulate differences between shark and frog with regard to their habitat, habits and external characters?Explain the differences between the two types of shellfish and provide three examples of each.