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Discuss osmotic balance in freshwater and saltwater fishes.
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- Discuss the contrasting osmotic problems faced by freshwater and marine teleost fish, and the mechanism by which these fish address these problems in order to remain in osmotic balance.What are the osmotic challenges faced by marine animals like fish? Describe how they cope with these challenges to maintain solute and water balance in their tissues.Describe the physiological challenges confronting marine inverte-brates entering freshwater and, using crustaceans as an example, suggest solutions to these challenges.
- a) The process by which salmon maintain an internal balance is called osmoregulation. Describe how salmon achieve osmoregulation as they migrate between fresh and saltwater environments. b) Describe what happens to salmon in fresh water. What direction do solutes tend to move via diffusion? What direction does water tend to move via osmosis?Explain the challenge of osmoregulation in marine (i.e., saltwater) environments and describe one way in which marine organisms have evolved to overcome this challenge. please help with examplesCompare the osmoregulatory problems and adaptations of a hypo-osmotic shallow marine fish, a hyperosmotic freshwater fish, a deep-sea fish, a salmon, and a terrestrial vertebrate
- Explain the challenges that insects have to overcome to maintain ion and water balance. Describe the structures used by insects that help them do this.Why are sharks osmoconformers yet ionoconformers? Explain using concepts on osmoregulation and ionoregulation.Explain how water and ion homeostasis are maintained for a freshwater fish and a saltwater fish. What is homeostasis? List the components of a homeostatic control system & briefly describe the functions of each component.