CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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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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What is the most likely homeostatic response to an increase in
environmental temperature?
A. Blood vesse! Constriction
5.
B. Producing sweat
C. Shivering and muscle contraction
D. Goose bump formation
6.
What could happen due to a failure in homeostasis?
A. The accumulation of waste products
B. The loss of excess water from the body
C. Maintaining excess levels of sugar in the body
D. All of the above are potential outcomes of failure of homeostasis.
7. Which of the following is true when the body is under homeostasis?
A. The body cannot generate its own heat in very cold conditions
B. The body is under dynamic equilibrium
C. The body is able to self-sustain without anything from the environment
D. None of the o' ve
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Chapter 20 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
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 - The diaphragm is a large sheet of muscle that...Ch. 20 - Prob. 9TYKCh. 20 - Prob. 10TYK
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