Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 41, Problem 1CCQ
Summary Introduction
To write:
Challenges a bird might encounter while flying at high altitudes over a mountain range in cold climate.
Introduction:
The animal body is a very complex system. However, it is immune to the changes as there are certain mechanisms make it tough to tolerate these changes. When an organism stabilizes its body temperature and the constant internal environment, during the change in the outer environment, it is known as homeostasis. Homeostasis is the relatively stable state inside the body of an organism.
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Animals must maintain temperature and water balance. The state of maintaining a constant or regular internal environment is called:
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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.
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- The regulation of temperature in mammals and birds is an example of homeostatis. Design an experiment to observe and measure processes involved in temperature homeostatis in sedentary versus athletic humans during exercise.arrow_forwardDescribe the manner by which amplification of minor variations in initial conditions leads to emergence of patterns in the absence of a global controller? Give a possible consequence of a positive feedback and negative feedback mechanism. What is homeostatic plateau? Why is it an important consideration in understanding complex systems?arrow_forwardBriefly describe one example of how the nervous, endocrine and circulatory systems work together to maintain homeostasis.arrow_forward
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- Role of Homeostasis in Human Physiology: A Review After reading the article, research what disorders result from loss of homeostasis. Choose 2 disorders, provide an overview of the diseases, characteristics of the normal homeostatic mechanisms, what aspects of the mechanisms are disrupted, and what treatments are used to restore normal homeostasis or treat the symptoms of the disorder.arrow_forwardWhy is feedback important in the body? Give an example on how our body uses the pairing of stimulus and response.arrow_forwardBiting flies can transmit diseases and cause loss of blood for animals in nature. Horses have developed behaviors to repel biting flies such as ear twitching, head tossing, leg stomping, and tail swishing. Which statement best describes the interaction between body systems that allows horses to repel biting flies?arrow_forward
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