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- How do the plasma osmolarity and sodium concentrations of the body fluids in hagfish compare to that of teleosts and lamprey? Both are much lower in hagfish Both are much higher in hagfish Hagfish have a similar plasma osmolarity to teleosts and lamprey but a much lower sodium concentration. Hagfish have a similar Na+ concentration in their plasma to teleosts and lamprey but a much greater plasma osmolarity overall.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.Related species of terrestrial animals typically display allometricrelations between body-water dynamism and body size. Forexample, the weight-specific rate of evaporative water loss tendsto decrease allometrically as body size increases. What are themechanistic reasons for these relationships?
- Young downstream salmon migrants moving from their freshwater natal streams into the sea leave an environment nearly free of salt to enter one containing three times as much salt as their body fluids. Describe osmotic challenges of each environment and suggest phys-iological adjustments salmon must make in moving from freshwater to the seaI know sharks are hyperregulators and there for their risks are water gain and ion loss. However, if they were put a extremely extremely salty area would it cause them harm or will they always want ions.Read this article (http://openstaxcollege.org/l/saltwater) for an explanation of the effect of seawater on humans. What effect does drinking seawater have on the body?
- Which of the following statements about osmoregulation is true? a. In freshwater invertebrates, salts move out of the body into the water because the animal is hypoosmotic to the water. b. A marine teleost has to fight gaining water because it is isoosmotic to the sea. c. Most land animals are osmoconformers. d. Vertebrates are usually osmoregulators. e. Terrestrial animals can regulate their osmolarity withoutexpending energy.Which one of the following is extremely important for water conservation in mammals? juxtamedullary nephrons podocytes Bowman's capsule urethra ureterWhen a salmon or other teleost fish migrates from seawater intofreshwater, what are all the changes that take place or are likelyto take place in its patterns of water–salt physiology?
- I know marine mussels are osmoregulators but if you but them in a very very very salty enviorment would it bad for them or would they still be okay?Marine and freshwater organisms use complementary mechanisms for water and salt regulation. Explain what are these complementary in marine bony fish and freshwater fishExplain why freshwater fish should not drink water and why saltwater fish should to maintain osmotic balance.