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 2TYU
Summary Introduction
Introduction:
The rate of the exchange of heat between an animal and its environment is called as the phenomenon of “Thermoregulation”. These animals generate heat and maintain the temperature within the environment by a flow of air over the body surface. The heat gets exchanged between the blood vessels in the circulatory system and the external environment.
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Students have asked these similar questions
Heat 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
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increase; decrease
D.
decrease; increase
E.
decrease; stay about the same
Which of the following occurs in the legs of goose (bird) standing on a frozen pond?
Group of answer choices
A. Warm blood from the body flows toward the legs of the bird.
B. Cool blood from the feet flows toward the body of the bird.
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D. A and C
E. A, B, and C
How does low temperature effect the life processes of cold-blooded animals?
Select one:
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b. decreases the procceses of heat emission
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d. increases heat buildup
e. changes the daily activity
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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- 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_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_forwardWhich of the following mechanisms could both be used by the body to increase body temperature if a person forgets a coat on a cold day? A. Superficial blood vessels dilate, and the thyroid decreases metabolism. B. Superficial blood vessels constrict, and the thyroid decreases metabolism. C. Superficial blood vessels dilate, and the thyroid increases metabolism. D. Superficial blood vessels constrict, and the thyroid increases metabolism.arrow_forward
- Which of the following is NOT a mechanism to maintain the body’s internal temperature? A. Fluid has a high capacity for heat, so it requires a great deal of energy to raise its temperature. B. Warmed fluids from the body’s surface return to the body’s core, thus heating the body. C. Fluid acts as a coolant by increasing the blood flow from the warm body core to the peripheral tissue, thus cooling the body. D. Fluid is evaporated as sweat from the skin’s surface, thus cooling the body.arrow_forwardThe rate of heat loss in a mammal is regulated bya. the degree of blood flow at the surface of the skin.b. the amount of perspiration.c. behavioral adaptations.d. air currents near the animal’s body.e. all of the above.arrow_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_forward
- Which of the following is part of the initial response to cold temperature? a. Panting b. Sweating C. Shunting of the blood to the core regions of the body d. Vasodilation of peripheral blood vessels e. Decreased metabolismarrow_forwardWhich method of heat exchange occurs during direct contact between the source and animal? a. radiation b. evaporation c. convection d. conductionarrow_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
- When animals hibernate, they lower their temperature. How would this reduce the rate of heat lost through conduction?arrow_forwardWhich of the following are examples of maintaining homeostasis (more than one answer may be correct)? a. You develop diarrhea in response to contracting norovirus b. Sweating due to eating spicy food c. Kidneys removing excess fluid through urine d. Insulin is released in response to high blood sugar, causing cells to use more sugararrow_forwardwhich of the following situations illustrates that a homeostatic mechanism is not operating properly? a. acute high blood pressure b. normalized blood glucose levels c. dailt fluid intake equals dailty fluid output d. all of these illustrate homestatic mechanisms operating properlyarrow_forward
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