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Draw a bony fish showing all the parts: Operculum, Gills, Gill rakers, Gill filaments, and Pharyngeal cleft
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- Branchial arches of the shark support the gill pouches and each one consists of five cartilagous element. Arrange the elements belowfrom dorsal to ventral: hypobrancial, ceratobranchial, epibranchial, pharyngobranchial and basibranchialLabel the external anatomy of a typical bony fish belowExplain how bony fishes differ from sharks and rays in the following systems or features: skeleton, scales, buoyancy, respiration, and reproduction.
- How many gill slits are present in Scoliodon?Amphioxus x.s (Female Slide) Explain the functions of the amphioxus, such as the pharynx, gills, gills slits, atrium, ovary, etc. Compare the internal features of the Amphioxus to starfish, grasshopper, earthworms, and planarian.Which structure of the ray-finned fishes allows for breathing in water while the fish is stationary? swim bladder operculum lateral line mucus glands
- 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, nostrilsBriefly describe respiration and circulation in crayfishes.Give the integumentary organs of the following representative chordates: Acorn worm Sea squirt Amphioxus Lamprey Shark