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 sea

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A: Long, narrow channels that are open at one end and closed at the other are present in solute-linked…

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A:

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A: Answer: Introduction: The rate of evaporation is directly proportional to the alteration among the…

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A: Adaptation  The ability of animals to change their characteristics according to the environment in…

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A: Introduction :- The glomerulus is protected by a two-walled pouch called Bowman's capsule. Bowman's…

Q: Mention the difference between overhydration, dehydration, and imbalane of osmotic fluid. Atleast 2…

A: Introduction: In a day, the amount of water may increase or decrease in the body.  The body…

Q: Explain the relationship between the amount of water in an animal’s environment and the kind of…

A: There are three types of nitrogenous waste which are ammonia, urea and uric acid. The amount of…

Q: What types of osmoregulatory challenges do humans experience? Explain. What mechanisms do we have to…

A: Homeostasis or osmoregulation is a process adopted by our body to maintain equilibrium environment…

Q: .Explain how osmotic pressure is generated, and compare and contrast the roles that hydrostatic and…

A: Osmotic pressure, hydrostatic pressure capillary forces gravitational pool theses are the force…

Q: Which of the following is true about drag in fish locomotion? It is the combined result of viscous…

A: Swimming is one form of locomotion present in aquatic animals. As fishes are present underwater,…

Q: Compare the osmotic concentration among most fluidcompartments

A: Osmotic concentration : It is the measure of solute concentration, defined as the number of osmoles…

Q: QUESTION 3 Why is sodium actively reabsorbed in the nephron? To decrease blood pressure To decrease…

A: The kidney is the excretory organ that maintain water balance in our body. It is responsible for the…

Q: We noted that a typical young, healthy human filters about 180 L of fluid per day through all of the…

A: A typical young, healthy human filters about 180 L of fluid per day through all of the glomeruli of…

Q: Many, but not all, marine fishes are simultaneously both osmoregulators and ionoregulators. Say that…

A: Osmoregulators are the organisms with an advanced osmotic tolerance, which can survive in a wide…

Q: select all that apply Which of these experimental designs could help determine if the change in…

A: On the basis of the ways of maintaining the osmotic balance, animals can be divided into two…

Q: Epithelial cells that reabsorb solutes are cuboidal, but epithelial cells involved in filtration are…

A: The kidneys are paired structures whose main function is the formation of urine. The functional unit…

Q: As the filtrate moves into the medulla, what is the major cause of an increase in filtrate…

A: Kidney is a bean-shaped organ that plays a crucial role in the renal system. Kidney consists of the…

Q: When filtrate moves through the ____ limb of loop of henle, NaCl leaves the filtrate through ____…

A: Answer: NEPHRON : It is the structural and functional unit of kidney. It is composed of renal…

Q: Describe the interactions between the following water parameters: • Ammonia • Nitrite • Nitrate •…

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Q: Elucidate the fundamental challenges the aquatic vertebrates and terrestrial vertebrates face in…

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Q: When a salmon or other teleost fish migrates from seawater intofreshwater, what are all the changes…

A: Teleosts are members of the Teleostei infraclass, which contains 96 percent of all extant fish…

Q: Describe the actions of aquaporins. Which aquaporins are always present and where and which are only…

A: Aquaporins belong to intrinsic protein family and they form a channel protein. This consists of six…

Q: Use the following diagram of a nephron to answer Questions 17-18. F A. D E 17. Which part of the…

A: The functional component of the kidney, the nephron, is in charge of controlling and filtering blood…

Q: Compare the metabolic rates in endotherms v ectotherms. What are the ratios for daytime Standard…

A: Amount of  energy used by an organism throughout a particular time frame is called its metabolic…

Q: Under ALL CONDITIONS of salt and water intake the kidneys must: A. Excrete more water than osmolytes…

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Q: Show the direction of water flow and mark the side with the greater osmotic pressure if you have a…

A: Osmotic pressure : the pressure produced by or associated with osmosis and dependent on molar…

Q: Active uptake of ions The fish in the diagram at right is best described as... A. A hypo-ionic,…

A: A fish is a gill-bearing, aquatic, craniate animal without limbs or digits. Tetrapods, which include…

Q: 42. Draw the relationship between salinity in the environment and the blood for a perfect…

A: When there is an imbalance of molecules on either side of a membrane, osmotic pressure results,…

Q: Concentrating urine in the mammalian kidney is made possible by...,. o o o o Passive transport of…

A: Osmosis can be defined as a process in which movement of solvent takes place from region of their…

Q: The osmotic pressure is directly proportional to the number of ions dissolved and with…

A: Osmotic pressure is defined as the pressure to prevent the osmosis in the cell. The osmosis is…

Q: Question 2 The detrusor muscle O moves urine along the ureters by peristalsis. surrounds the renal…

A: Urine formation occurs in the long nephron which is part of the renal tubule and renal corpuscle…

Q: Being as specific as possible, discuss how global warming can beexpected to alter the water…

A: The release of greenhouse gases in the air has caused an increase in the global temperature called…

Q: Some animals living in water excrete nitrogen as ammonia. Land animals, which must conserve water,…

A: Protein degradation in the body produces ammonia. The ammonia produced is excreted as it is in…

Q: Countercurrent exchange in the fish gill helps to maximise [

A: Introduction Countercurrent exchange is a process that allows the fishes to diffuse maximum oxygen…

Q: Related species of terrestrial animals typically display allometricrelations between body-water…

A: In the system of the well-known term which is used to define the broadest sense, allometry describes…

Q: To minimize disturbances in the osmolarity of body fluids, many people eat and drink at the same…

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Q: Animals that can tolerate loss of nearly all their body water exhibit an adaptation called

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