Human Physiology: An Integrated Approach, Books a la Carte Edition and Modified Mastering A&P with Pearson eText - ValuePack Access Card (7th Edition)
7th Edition
ISBN: 9780134269221
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 1, Problem 15RQ
Although dehydration is one of the most serious physiological obstacles that land animals must overcome, there are others. Think of as many as you can, and think of various strategies that different terrestrial animals have to overcome these obstacles. (Hint: Think of humans, insects, and amphibians; also think of as many different terrestrial habitats as you can.)
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Chapter 1 Solutions
Human Physiology: An Integrated Approach, Books a la Carte Edition and Modified Mastering A&P with Pearson eText - ValuePack Access Card (7th Edition)
Ch. 1 - If a person eats 12 milligrams (mg) of salt in a...Ch. 1 - Glucose is metabolized to CO2 and water. Explain...Ch. 1 - What is the drawback of having only a single...Ch. 1 - Prob. 4CCCh. 1 - Students in the laboratory run an experiment in...Ch. 1 - Prob. 6CCCh. 1 - Define physiology. Describe the relationship...Ch. 1 - Name the different levels of organization in the...Ch. 1 - Prob. 3RQCh. 1 - Prob. 4RQ
Ch. 1 - Define homeostasis. Name some regulated variables...Ch. 1 - Name four major themes in physiology.Ch. 1 - Put the following parts of a reflex in the correct...Ch. 1 - The name for daily fluctuations of body functions...Ch. 1 - Mapping exercise: Make a large map showing the...Ch. 1 - Distinguish between the items in each group of...Ch. 1 - Name as many organs or body structures that...Ch. 1 - Prob. 12RQCh. 1 - Explain the differences among positive feedback,...Ch. 1 - A group of biology majors went to a mall and asked...Ch. 1 - Although dehydration is one of the most serious...Ch. 1 - Prob. 16RQCh. 1 - You performed an experiment in which you measured...Ch. 1 - Prob. 18RQCh. 1 - Prob. 19RQ
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- 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 C. increase; decrease D. decrease; increase E. decrease; stay about the samearrow_forwardA fundamental measure of physiological function capacity is known as?arrow_forwardWhat would be the impact on obligatory volume if humans had a medullary concentration gradient extending to 2000 mOsm/L?arrow_forward
- Read the following scenario and determine the parts of the homeostasis feedback loop. When a human increases physical activity, the amount of fuel burned in its cells also increases, which in turn increases the concentration of dissolved CO2 in the blood. The CO2 reacts with water in the blood to make a weak acid, which lowers the pH of the blood. Sensory cells in the aortic arch register this drop in pH and send sensory information to the medulla oblongata of the brain. The medulla oblongata sends signals to the diaphragm to increase respiration. This will clear the CO2 from the bloodstream. A. Name the stimulus in this scenario. B. Explain what a receptor is in the homeostasis feedback loop and name the receptor in this scenario. C. Explain what an integrating center is in the homeostasis feedback loop and name integrating center in this scenario. D. Explain what an effector is in the homeostasis feedback loop and name the effector in this scenario. E. Name the response in this…arrow_forwardillustrate the general principle of physiology that information flow between cells, tissues, and organs is an essential feature of homeostasis and allows for the integration of physiological processes.arrow_forwardYou 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_forward
- If a kangaroo rat was to drink excessive alcohol, how would that effect him in terms of osmoregulation?arrow_forwardDescribe the feedback process that would occur if you drank far more water than your body needed.arrow_forwardthe process that initiates urine formation in most types of vertebrates is ultrafiltration of fluid from the blood plasma into kidney tubules under the force of blood pressure. What properties of the blood plasma in the urine-forming structures of the kidney are likely to affect the rate of ultrafiltration into the kidney tubules? Why is failure of urine production a potential side effect of heart disease?arrow_forward
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