32°CVeinArtery15°C8°C0-5°CHeatThis example of a seagulls leg on a cold surface illustrates:O Blood shunting: which shunts heat from warm arteries into nearby cold veinsO Acclimation; which will allow the gull to acclimate to lower temperatures where the brain does not register the cold any longerO Countercurrent blood circulation: which allows the temperature of the feet to stay just above freezing, while maintaining a warm coretemperatureHeterothermy: which keeps the blood at a constant temperature as it travels down the bird's leg

The image shows a seagull's leg with different temperatures and a zoomed-in view of the blood…

Answered: 32°C Vein Artery 15°C 8°C 0-5°C Heat…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter37: Maintaining The Internal Environment

Section: Chapter Questions

Problem 3CT

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Endothermic animals can maintain consistent temperature conditions by generating, main- taining, and regulating their body heat. Under cold conditions, more body heat becomes lost to the environment. Endothermic ani- mals rely on different mechanisms that allow them to maintain their body heat. Which of the following mechanisms that occur in endothermic animals does not describe a mechanism by which they maintain their body heat under these types of conditions? A B с D Some endothermic animals hibernate during extreme environmental conditions, which decreases the rate of metabolic reaction and decreases heat loss. The tissues of the blood vessels of many endothermic animals can dilate and move closer to the skin, allowing for heat to move more readily into the environment. Shivering, which can occur involuntarily in most endothermic animals, produces rapid muscle contractions, which increase the rate of cellular respiration and thereby increase heat production. Layers of densely packed…
Name : Mol Observations, & CER Name a plant or animal that Expla ans show the cho characteristic of life Movement pife neake imuli
*our body is tightly regulated to maintain an internal (core) temperature of 98.6 degrees F. Your body does not function properly if you get too hot or too cold, partially because protein enzymes get too "stiff" (cold temperatures) or denatured (hot temperatures). If blood temperature rises too high, this is sensed by specialized neurons in the brain. They signal other herve centers, which in turn send signals toʻthe blood vessels of the skin. As these blood vessels dilate, more blood flows close to the body surface and excess heat radiates from the body. If this is not enough to cool the body back to its set point, the brain activates sweating. Evaporation of sweat from the skin has a strong cooling effect, as we feel when we are sweaty and stand in front of a fan. In this example, the brain is a(n): а. гесеptor b. control center nent C. effector eweet alands, are a(n):
Many marine fish swim into deep, cold water to pursue prey or avoid predators. How does cold temperature influence their ability to swim? What other affects will the cold water have on their body?
If the blood temperature falls too low, this is also sensed by the brain and signals are sent to the cutaneous arteries (those supplying the skin) to constrict them. Warm blood is then retained deeper in the body and less heat is lost from the surface. If this is inadequate, the brain activates shivering. Each muscle tremor in shivering releases heat energy and helps warm the body back toward its 98.6 degrees set point. • This is an example of a. a negative feedback loop b. a positive feedback loop
Create a cool down for soccer, Remember to cover the basic ground rules:About 10 minutes in lengthBegin at a high level of intensity and work your way down to a resting heart rateIncorporate both static and dynamic activitiesMove all relevant body parts
Which of the following is not a energy source or type of stimulus; O Force O Temperature O None of these is correct O Pressure waves O Chemicals
Countercurrent heat exchangers are more useful for ectotherms to allow their body temperature to match the environment endotherms to allow the body's core temperature to remain stable endotherms to allow their extremities to remain at an elevated body temperature in the cold poikilotherms that need to have different body temperatures ectotherms to permit them to maintain constant body temperature
All else being equal, a warm chameleon sitting on a sunny tree branch will experience a decrease in body temperature due to conduction if: It changes color, and its new hue is a lighter color, reducing the amount of energy the chameleon absorbs from the sun. The branch is cooler than the chameleon, and heat moves directly from the warmer animal to the cooler branch. It opens its mouth, allowing water to evaporate from its tongue and cheeks. OA cold breeze moves over the chameleon, transferring heat from the warmer chameleon to the cooler, moving air.
Goldfish are one of the most common aquatic pets. The average temperature to maintain healthy goldfish is between 72-75 degrees Fahrenheit. However, it is not unusual to find goldfish keeping office workers company in frigid cubicles as low as 68 degrees Fahrenheit. Mary noticed her goldfish opened and closed it’s operculum (protective covering for the gills) more often when the temperature in her office was warm. Worried, she may be harming her pet by keeping her office so cold, Mary set up an investigation to test the impact cold temperatures had on her goldfish’s respiration rate. Which of the following experiments would be best to investigate if goldfish maintain homeostasis during varying temperatures?
Q29:Which of the following is an example of Echemical?O a molecule of glucoseO water rushing over Niagara FallsO light flashes emitted by a freflyO the muscle contractions of a person mowing grass
The movement of sodium ions and potassium ions in opposite directions across the plasma membrane of a nerve cell, using the hydrolysis of ATP for energy, is an example of: antiport movement uniport movement symport movement all of the above none of the above

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