Campbell Biology: Concepts & Connections, Books a la Carte Edition (8th Edition)
8th Edition
ISBN: 9780321946683
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Question
Chapter 20, Problem 11TYK
Summary Introduction
To derive: A hypothesis to explain the effect of ice-cold water on the rate at which our body returns back to its normal temperature and also test this hypothesis.
Introduction: The temperature of body rises when someone comes after a long run. Homeostasis is operating under such circumstances for the regulation of temperature in the body. Hypothalamus of the brain maintains the temperature of the body. Homeostasis is mainly dependent on the negative feedback mechanism. When the temperature of the body rises, the hypothalamus senses the increase and reduces body tempearature by activating cooling mechanisms. For example, the secretion of sweat is a cooling mechanism.
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Students have asked these similar questions
A tiger was chasing a mouse across a field. Each was running at the same pace and increased its internal temperature to the same ratio of its initial body temperature. Which explanation correctly describes which animal would return to its initial temperature more quickly after the chase ended?
A. The mouse loses water more quickly, and evaporation will cool its body faster because of size.
B. The mouse has adapted to running longer distances relative to size and is more fit than the tiger.
C. The tiger has a larger surface-area-to-volume ratio and will cool more quickly.
D. The tiger can cool more quickly because of decreased metabolic rates within larger animals.
Can you please do the conclusion
Hypothesis if there’s an external temperature change then the body will respond to maintain homeostasis.
What effect would swimming in cool water have on body temperatureregulation? What would happen if a negative-feedback mechanismdid not return the value of a variable, such as body temperature, to itsnormal range?
Chapter 20 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Edition (8th Edition)
Ch. 20 - Connecting the Concepts 1. There are several key...Ch. 20 - True or false? Each cell in the human body is...Ch. 20 - Prob. 3TYKCh. 20 - Negative-feedback mechanisms are a. most often...Ch. 20 - Briefly explain how the structure of each of these...Ch. 20 - Describe ways in which the bodies of complex...Ch. 20 - Which of the following best illustrates...Ch. 20 - Prob. 8TYKCh. 20 - Prob. 9TYKCh. 20 - Prob. 10TYK
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- You are studying a large tropical reptile that has a high and relatively stable body temperature. How do you determine whether this animal is an endotherm or an ectotherm? (A) You know from its high and stable body temperature that it must be an endotherm. (B) You subject this reptile to various temperatures in the lab and find that its body temperature and metabolic rate change with the ambient temperature. You conclude that it is an ectotherm. (C) You note that its environment has a high and stable temperature. Because its body temperature matches the environmental temperature, you conclude that it is an ectotherm. (D) You measure the metabolic rate of the reptile, and because it is higher than that of a related species that lives in temperate forests, you conclude that this reptile is an endotherm and its relative is an ectotherm.arrow_forwardEndothermy and Ectothermy are two strategies that organisms use to generate or maintain their internal body temperature. An ectotherm is an organism that derives very little of its body temperature internally, and relies on the environment for heat. An endotherm is an organism that maintains its own body at a metabolically favorable temperature by internal means. Question: How does temperature affect endotherms and ectotherms differently? Describe the evidence that will help you make a claim about the question: How does temperature affect endotherms and ectotherms differently?arrow_forwardIn the negative feedback system for regulation of body temperature. Identify the following. 1. Stimulus 2. Receptor 3. Control Center 4. Effector 5. Responsearrow_forward
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- How does a human body respond when its internal temperature get too hotarrow_forwardSuppose at the end of a hard runon a hot day you find that there are no drinksleft in the cooler. If, out of desperation, youdunk your head into the cooler, how might theice-cold water affect the rate at which your bodytemperature returns to normal?arrow_forwardExplain why a constant high body temperature is worth all the energy it costs.arrow_forward
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