Why aquatic animals are comfortable in cold water

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But these animals take thermoregulation to an extreme, enduring water temperatures as low as –2 degrees Celsius (28.4 degrees Fahrenheit) and air temperatures reaching –40 degrees C (–40 degrees F). How do they pull it off? And don't they ever feel cold? ScientificAmerican.com's fellow Twitterers recently asked, prompting us to investigate. We talked to [ An edited transcript of the interview follows.] How cold can liquid seawater get? Polar oceanic water can get as cold as about –2 degrees C. Even seawater in temperate or tropical regions might drop as low as –1 degree C [30.2 degrees F] if you go deep enough below the surface. [You may be wondering why water at -1 or -2 degrees C is not ice. Because Can whales, dolphins and other marine mammals thrive in these frigid waters? Certain species of Is there any evidence they can "feel" the cold like humans do? Their skin is innervated with temperature-sensing nerve cells just as is the skin of any mammal.* They certainly have the ability to sense temperature, but how that translates to what they feel [whether they experience discomfort, for example] is a hard question to answer. But they certainly respond to temperature stimuli. Whales and other marine mammals maintain a core body temperature similar to ours—about 37 degrees C (99 degrees F). How do they manage to do this under such extreme conditions? They have two general types of responses: behavioral and physiological. A typical behavior response is What are the physiolog...

There are many answers to this question. Warm water contains less oxygen so some aquatic organisms that get their oxygen directly from the water may not be able to survive, other organisms may grow rapidly in higher temperatures. This overgrowth could further deplete the available oxygen creating additional losses. If the temperature is high enough animals that didn't succumb to low oxygen levels may die of metabolic problems. What happens when you mix dry yeast with warm water? warm water - yeast needs warm water to become active. suger is the yeast's food .it gives the yeast the energy it needs to grow. cold water - the cold water kills the yeast (kind of) normal room temperature - the yeast just becomes in active and doesn't react How does water temperature affect the survival of organisms? The temperature of water affects living organisms because they have to adjust to one temperature to survive. For example; some fish live only in cold water, and then oneday if the water temperature suddenly rose and became warm/hot, this would pose a problem for the fish!

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There are many answers to this question. Warm water contains less oxygen so some aquatic organisms that get their oxygen directly from the water may not be able to survive, other organisms may grow rapidly in higher temperatures. This overgrowth could further deplete the available oxygen creating additional losses. If the temperature is high enough animals that didn't succumb to low oxygen levels may die of metabolic problems. What happens when you mix dry yeast with warm water? warm water - yeast needs warm water to become active. suger is the yeast's food .it gives the yeast the energy it needs to grow. cold water - the cold water kills the yeast (kind of) normal room temperature - the yeast just becomes in active and doesn't react How does water temperature affect the survival of organisms? The temperature of water affects living organisms because they have to adjust to one temperature to survive. For example; some fish live only in cold water, and then oneday if the water temperature suddenly rose and became warm/hot, this would pose a problem for the fish!

• Course • NCERT • Class 12 • Class 11 • Class 10 • Class 9 • Class 8 • Class 7 • Class 6 • IIT JEE • Exam • JEE MAINS • JEE ADVANCED • X BOARDS • XII BOARDS • NEET • Neet Previous Year (Year Wise) • Physics Previous Year • Chemistry Previous Year • Biology Previous Year • Neet All Sample Papers • Sample Papers Biology • Sample Papers Physics • Sample Papers Chemistry • Download PDF's • Class 12 • Class 11 • Class 10 • Class 9 • Class 8 • Class 7 • Class 6 • Exam Corner • Online Class • Quiz • Ask Doubt on Whatsapp • Search Doubtnut • English Dictionary • Toppers Talk • Blog • Download • Get App Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Board, MP Board, Telangana Board etc NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year papers, NEET previous year papers, NCERT books for classes 6 to 12, CBSE, Pathfinder Publications, RD Sharma, RS Aggarwal, Manohar Ray, Cengage books for boards and competitive exams. Doubtnut is the perfect NEET and IIT JEE preparation App. Get solutions for NEET and IIT JEE previous years papers, along with chapter wise NEET MCQ solutions. G...

But these animals take thermoregulation to an extreme, enduring water temperatures as low as –2 degrees Celsius (28.4 degrees Fahrenheit) and air temperatures reaching –40 degrees C (–40 degrees F). How do they pull it off? And don't they ever feel cold? ScientificAmerican.com's fellow Twitterers recently asked, prompting us to investigate. We talked to [ An edited transcript of the interview follows.] How cold can liquid seawater get? Polar oceanic water can get as cold as about –2 degrees C. Even seawater in temperate or tropical regions might drop as low as –1 degree C [30.2 degrees F] if you go deep enough below the surface. [You may be wondering why water at -1 or -2 degrees C is not ice. Because Can whales, dolphins and other marine mammals thrive in these frigid waters? Certain species of Is there any evidence they can "feel" the cold like humans do? Their skin is innervated with temperature-sensing nerve cells just as is the skin of any mammal.* They certainly have the ability to sense temperature, but how that translates to what they feel [whether they experience discomfort, for example] is a hard question to answer. But they certainly respond to temperature stimuli. Whales and other marine mammals maintain a core body temperature similar to ours—about 37 degrees C (99 degrees F). How do they manage to do this under such extreme conditions? They have two general types of responses: behavioral and physiological. A typical behavior response is What are the physiolog...

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