Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Question
Chapter 32, Problem 5TYU
Summary Introduction
Introduction:
Thermoregulation is a mechanism by which the internal temperature of the body is maintained by exchanging heat with the surroundings. It occurs in ectothermal animals like fishes and amphibians. The endothermal animals have an internal mechanism for regulating and maintaining the temperature inside their body by the generation of energy in the
Therefore, the ectotherms and endotherms differ in the mechanism of the regulation of heat exchange inside the body due to the mechanism of thermoregulation.
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Students have asked these similar questions
Which of the following is a correct statement about endothermic organisms?
A. Compared to ectotherms, since they cannot have their internal body temperature leave the thermoneutral zone, they are limited with regard to the types of environments they can live in.
B. Endotherms do not typically use passive mechanisms for thermoregulation, such as insulation, because they utilize metabolic energy to control body temperature.
C. The trait of endothermicity is a derived characteristic in mammalian animals and is not seen in other phylogenetic branches in the Metazoan Clade.
D. All endotherms possess sweat glands, which allow them to conduct evaporative cooling to lower their body temperature when needed.
E. None of the above
Thermoregulation is the process by which animals maintain an internal temperature within a
tolerable range.
Which of the following statement is NOT TRUE about Thermoregulation ?
Lütfen birini seçin:
O a. Endothermic animals generate heat by metabolism
O b. Ectothermic animals gain heat from external sources
O c. In general, ectotherms tolerate greater variation in internal temperature, while endotherms are active at a greater
range of external temperatures
O d. Ectothermy is more energetically expensive than endothermy
Which statement regarding thermoregulation is TRUE?
ectotherms thermoregulate by moving between sunny and shady locations whereas endotherms do not thermoregulate
endotherms thermoregulate by producing heat through metabolic reactions whereas ectotherms do not thermoregulate
ectotherms and endotherms both thermoregulate, but they do it through different methods
Chapter 32 Solutions
Campbell Biology in Focus
Ch. 32.1 - What properties do all types of epithelia share?Ch. 32.1 - Prob. 2CCCh. 32.2 - Prob. 1CCCh. 32.2 - Prob. 2CCCh. 32.2 - Prob. 3CCCh. 32.3 - Is it accurate to define homeostasis as a constant...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - What is the function of the filtration step in...Ch. 32.4 - What advantage does uric acid offer as a...
Ch. 32.4 - WHAT IF? A camel standing in the sun requires much...Ch. 32.5 - Prob. 1CCCh. 32.5 - Prob. 2CCCh. 32.5 - WHAT IF? If blood pressure in the afferent...Ch. 32 - The body tissue that consists largely of material...Ch. 32 - Prob. 2TYUCh. 32 - Which process in the nephron is least selective?...Ch. 32 - Homeostasis typically relies on negative feedback...Ch. 32 - Prob. 5TYUCh. 32 - In which of the following species should natural...Ch. 32 - Prob. 7TYUCh. 32 - Prob. 8TYUCh. 32 - Prob. 9TYUCh. 32 - Prob. 10TYUCh. 32 - Prob. 11TYUCh. 32 - SYNTHESIZE YOUR KNOWLEDGE These macaques (Macaca...
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Similar questions
- The cost of being endothermic is a high demand for energy (food) to support metabolic heat production. Compared with large endotherms (such as a polar bear), small endotherms (mouse) require feeding rates, partly because they have a surface area-to-volume ratio A. similar; similar B. lower; lower O C. higher; higher O D. lower; higher O E. higher; lowerarrow_forwardHeat exchange with the environment depends on the surface area-to-volume ratio of the body. Assuming that the body shape of an animal is at least somewhat spherical, a considerable decrease in body size would the surface area-to-volume ratio, and the ability to exchange heat with the environment would A. increase; increase B. increase; stay about the same C. increase; decrease D. decrease; increase E. decrease; stay about the samearrow_forwardWhich of the following statements about metabolic heat is true? A. All animals produce metabolic heat B. Homeotherms rely on metabolic heat to maintain body temperature C. Animals that use metabolic heat to maintain body temperature are at lower risk of overheating than animals that do not use metabolic heat to maintain body temperature D. Relative to their body size, large animals lose more metabolic heat to the environment than small animals E. All of the above are truearrow_forward
- When the environmental temperature is higher than its body temperature, a toucan (a bird with a very large beak) will increase heat loss by... A. Increasing blood flow to the beak to shed heat by radiation and convection B. Moving to a breezy location to take advantage of convective heat loss C. Gular fluttering D. Lowering heat generated via brown adipose tissue E. All of the abovearrow_forwardPlease answer fastarrow_forwardThe following statements describe the reason why water is most essential nutrient, except: A. Water makes up about 60% of the adult human weight and is not caloric. B. Essential nutrients are dissolved in water. C. Water regulates body temperature. D. Water is needed for various metabolic processes in the body.arrow_forward
- please explain how body will maintain homeostasis with osmoregulation, like in the picturearrow_forwardWhich of the following statements about metabolic heat is true? A. Relative to their body size, animals that maintain body temperature by metabolic heat production have lower metabolic rates than animals that do not use metabolic heat to maintain body temperature B. Metabolic heat is the product of inefficiencies in the biochemistry of life C. Homeotherms rely on metabolic heat to maintain body temperature D. Relative to their body size, larger animals lose more metabolic heat to the environment than smaller animals E. All of the above are truearrow_forwardWith regard to thermoregulation in humans, what could be considered an accurate consequence of the outside temperature dropping below the lower critical temperature? A. The individual will begin to breathe in less oxygen and exhale less carbon dioxide. B. The metabolic needs of the individual will increase if they remain below the lower critical temperature for sufficient time-frames. C. Capillaries (i.e. blood vessels) near the surface of the skin will dilate in order to allow blood to circulate more freely throughout the organism, distributing heat to raise temperature. D. The person's Basal Metabolic Rate will be lowered to match the Standard Metabolic Rate of an ectotherm of comparable size. E. Hormones from the hypothalamus will be released, which lead to the initiation of a positive feedback response that amplifies muscle contraction, leading to shivering.arrow_forward
- The thermoneutral zone is the range of body temperatures over which an animal can maintain a constant basal metabolic rate. Which of the following patterns about thermoregulation is true? A. Below the lower critical threshold, animals must decrease their metabolic rate in order to maintain body temperature B. Animals living in the arctic have higher critical temperatures than do animals in the tropics C. When outside temperatures are below the lower critical temperature for an animal, animals in the arctic increase their metabolic rate faster than do animals in the tropics D. All of the above E. None of the abovearrow_forwardCHOOSE ALL THAT APPLY: Which of the following animals use countercurrent heat exchange to maintain elevated body temperatures? Arctic animals like arctic fox Large tropical lizards, like komodo dragons Whales, dolphins and other cetaceans Predatory fish like tuna and sharksarrow_forwardThe rate at which an animal uses energy is calleda. body mass index.b. the animal’s energy consumption.c. metabolic rate.d. nonshivering thermogenesis.e. shivering thermogenesisarrow_forward
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