Q: Give the digrammatic representation showing scheme of single circulation in a fish?
A: Fishes have two chambered heart and their heart has only one atrium and one ventricle. The…
Q: how do marine fish perform osmoregulation? A) through gaining water through the gills B) through…
A: Osmoregulation is the active regulation of the osmotic pressure of an organism body fluids which is…
Q: Compare osmoregulation by (1) sharks versus marine bony fish, and (2) freshwater bony fish and…
A: INTRODUCTION Aquatic insects excrete dilute wastes from their anus directly into water by flushing…
Q: How does oxygen get into the bloodstream of the fish? What does "counter-current" mean with respect…
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Q: Draw the structure of nephrons.
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Q: How does the siphon's action allow the squid to move quickly through water? Explain in 7 sentences.
A: The principle of siphoning. Surface tension squeezes the liquid stream in to the different drops…
Q: Describe the water vascular system that seastars utilize for locomotion, respiration, and food…
A: Sea stars also known as starfish are the marine invertebrates, belongs to class Asteroidea of phylum…
Q: What is the locomotion in pelagic urochordate
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Q: ructures commonly present in all vertebrate kidneys?
A: Vertebrates have the following variation of the kidneys: - Pronephros Mesonephros Metanephros
Q: Describe structure of the nephron. How is the mammalian nephron capable of creating concentrated…
A: Answer of the question given below...
Q: Describe the four functional regions of the mammalian kidney.
A: The kidneys can be defined as the two bean-shaped organs in the renal system. They help the body…
Q: Draw a well labelled diagram of a mammalian kidney tubule(nephron) and its blood supply.
A: Nephrons are the structural and functional units of the kidney. The filtration of blood occurs…
Q: How many times did a true "kidney" evolve in the animal clade. Which cases are clearly homologous…
A: Vertebrates belong to Animalia clade. Invertebrates, kidneys arise from intermediate mesoderm and…
Q: Name two types of nephrons found in human kidney.
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Q: How does the swim bladder varies in different aquatic environments?
A: The swim bladder or air bladder is an internal gas filled organ that contributes to the ability to…
Q: What happens to the water in the descending limb of the loop of Henle?
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Q: What are the three types of nitrogenous wastes? Which animals aremost likely to excrete each one,…
A: Nitrogen is one of the most essential macronutrients needed for the sustenance of life. It is an…
Q: Countercurrent flow allows_____ to maximize their oxygen uptake from water. a. fishes c. frogs b.…
A: Countercurrent is the flow of fluids in the opposite direction. Countercurrent is a highly efficient…
Q: Are most fast-swimming fish cold-blooded or warm-blooded? What advantage does this provide?
A: Some species of fishes possess a web of arteries and veins lying very close together which enables…
Q: why micturition is more in winters than in summer season?
A: Urination is the process of releasing urine outside our body from the urinary bladder through the…
Q: Discuss osmotic balance in freshwater and saltwater fishes.
A: Osmoregulation is the ability to maintain an internal balance of water and salt. Kidney plays an…
Q: Why do marine entities lack contractile vacuoles as compared to fresh water entities?
A: A contractile vacuole is a sub-cellular structure involved in osmoregulation. It is found…
Q: Describe countercurrent exchange in the gills of fish. How does it increase the effectiveness of…
A: Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen…
Q: Why do all the fresh water organisms have contractile vacuoles where as majority of marine organisms…
A: The contractile vacuole is a sub-cellular structure that is involved in osmoregulation. It is…
Q: Draw the structure of nephridial system in earthworm?
A: Nephridia carry out the excretion in the earthworm. It is present in pairs in the body’s segments.
Q: How a fish that migrate from freshwater to seawater (and/or vice versa) osmoregulate?
A: Introduction Osmoregulation is a process by which an organism maintain a internal balance between…
Q: Draw a labelled diagram of excretory system of "common carp" fish?
A: Common carp fish : scientists name is cyprinus carpio It is a freshwater fish & prefer slow…
Q: Why is the fish circulationclassified as a simple andcomplete circulation?
A: The fish are the cold blooded aquatic vertebrates of the phylum Chordata that are found in both…
Q: How does the mammalian kidney produce concentrated urine?
A:
Q: Why is it a problem to the animals lacking siphons to live in the sediment? List two problems.
A: The aquatic molluscs belonging to the classes Cephalopoda, Bivalvia, and Gastropoda contain…
Q: What can you determine from the following spirometery flow-volume loop?
A: During maximally pressured inspiratory and expiratory manoeuvres, the flow-volume loop plots…
Q: What is the ascending limb of Henle permeable to? What processes are involved here for pumping out…
A:
Q: Explain what are countercurrent exchangers? Explain how are they used in the conservation of…
A: The kidneys are two bean-shaped organs, about the size of a fist, that are part of the urinary…
Q: Which mechanism is responsible for bursting of marine fish when placed in tap water?
A: The fishes that live in the ocean water are called saltwater or marine fish.
Q: how do organisms without a swim bladder behave?
A: * swim bladder is also called Air bladder and Gas bladder. *Swim bladder is an internal organ which…
Q: The excretory structure of the earthworm is, 1. A protonephridium 2. An ananephridium 3. A…
A: Numerous invertebrates have nephridium, an organ used for excretion. Two varieties of nephridium…
Q: What do the number and length of nephrons in a fish’skidney indicate about the fish’s habitat? How…
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Q: If a lung were to be found in a mollusk, where would it be located (incurrent siphon/mantle cavity/…
A: Mollusks are the members of phylum Mollusca. It is the second largest phylum of the invertebrates.…
Q: Where are the kidneys located in the herring? What form of nitrogenous waste do herring produce and…
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Q: Compare the excretory systems of a flatworm and an annelid worm. How are they similar? How are they…
A: Animal kingdom is a kingdom which comprises of Eukaryotic , heterotrophic organism . It comprises of…
Q: What has happened to the size of the central vacuole when Elodea is in distill water
A: Osmosis is the movement of water molecules from their region of higher concentration to their region…
Q: Draw a well labelled diagram of nephron.
A: A NEPHRON is the basic structural and functional unit of the kidneys. It regulates water and soluble…
Q: What poses a physiological challenge for organisms that live in the tidal zone but can’t move with…
A: Tides are caused in the oceans by the gravitational pull of the moon and the rotational force of the…
Q: what are the possible pathological consequences of an electrolye imbalance in animals…
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Q: Describe how gas gradients arise; apply them to fish
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Q: Describe what happens during the following stages in urine forma-tion in the mammalian nephron:…
A: The urinary system in mammals is composed of paired kidneys and ureters, a urinary bladder, and a…
What is meant by “countercurrent flow” as it applies to fish gills?
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- Describe countercurrent exchange in the gills of fish. How does it increase the effectiveness of gills?Which component of blood is likely to transport most of the oxygenin an icefish?Explain what are countercurrent exchangers? Explain how are they used in the conservation of temperature. How is it used to extract oxygen in gills? How is it used to eliminate waste in the Malpighian tubules? How is a counter current multiplier used to concentrate urine in the kidney?
- What is the ascending limb of Henle permeable to? What processes are involved here for pumping out the materials?Why is the fish circulationclassified as a simple andcomplete circulation?1) A diver decides to take a balloon with him on a scuba diving excursion to a depth of 10m. The size (volume) of the balloon would _____. A) remain the same throughout the dive B) decrease on the way down and return to its original size on the way back up C) increase on the way down and shrink back to its original size on the way back up 2) How does the size of the air bladder compare between freshwater and salt water fish? A) freshwater fish have larger air bladders because they need to be less dense B) freshwater fish have smaller air bladders because they need to be less dense C) saltwater fish have larger air bladders because they need to be less dense D) freshwater and salt water fish have the same size air bladders because the air bladders play no role in osmoregulation or maintaining salt balance 2) Physoclistous fish fill their air bladders by _____. A) going to the surface and gulping air B) using the carbon dioxide that they produce through aerobic metabolism C)…
- This diagram illustrates which of the following Choose from the following: (A) secretion of hydrogen via Na+/H+ exchange ions by the proximal convoluted tubule (B) reabsorption of bicarbonate ions by intercalated cells (A) in the collecting duct (C) secretion of H+ by H+K+/ATPase pumps in the intercalated cells (A) in the collecting duct (D) A and B (E) all of the aboveDraw diagram CHP systemDescribe ths homeostatic functions of the vertebrate circulatory system .what functions are maintained at relatively stability ?And name the chief intracellular electrolytes and the chief extracellular electrolytes
- Explain how insects are capable of secreting concentrated urine without depending on high blood pressure filtration.Compare osmoregulation by (1) sharks versus marine bony fish, and (2) freshwater bony fish and freshwater mosquitoes.What poses a physiological challenge for organisms that live in the tidal zone but can’t move with the tides ?
