Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 40, Problem 40.3CR
Given that humans thermoregulate, explain why your skin is cooler than your body core.
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Chapter 40 Solutions
Campbell Biology
Ch. 40.1 - What properties do all types of epithelia share?Ch. 40.1 - VISUAL SKILLS Consider the idealized animal in...Ch. 40.1 - WHAT IF? Suppose you are standing at the edge of...Ch. 40.2 - MAKE CONNECTIONS How does negative feedback in...Ch. 40.2 - If you were deciding where to put the thermostat...Ch. 40.2 - Prob. 3CCCh. 40.3 - Prob. 1CCCh. 40.3 - Flowers differ in how much sunlight they absorb....Ch. 40.3 - Prob. 3CCCh. 40.4 - If a mouse and a small lizard of the same mass...
Ch. 40.4 - Prob. 2CCCh. 40.4 - Prob. 3CCCh. 40 - Prob. 40.1CRCh. 40 - Is it accurate to define homeostasis as a constant...Ch. 40 - Given that humans thermoregulate, explain why your...Ch. 40 - Why do small animals breathe more rapidly than...Ch. 40 - Level 1: Knowledge/Comprehension 1. The body...Ch. 40 - Prob. 2TYUCh. 40 - Consider the energy budgets for a human, an...Ch. 40 - Prob. 4TYUCh. 40 - Prob. 5TYUCh. 40 - Prob. 6TYUCh. 40 - Prob. 7TYUCh. 40 - Prob. 8TYUCh. 40 - EVOLUTION CONNECTION In 1847, the German biologist...Ch. 40 - SCIENTIFIC INQUIRY Eastern tent caterpillars...Ch. 40 - SCIENCE. TECHNOLOGY. AND SOCIETY Medical...Ch. 40 - WRITE ABOUT A THEME: ENERGY AND MATTER In a short...Ch. 40 - 13. SYNTHESIZE YOUR KNOWLEDGE These macaques...
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- Using the Venn diagram compare and contrast how thermoregulation in the human body is comparable to a thermostat regulating temperature in a home or building.arrow_forwardHumans and some other animals use evaporative cooling to help regulate body temperature. Which statement regarding evaporative cooling is true? Evaporative cooling is possible because of the high heat capacity of liquid water. Evaporative cooling has a cost: the organism must ingest water and ions that are lost during sweating. Body temperature decreases during evaporative cooling because the water molecules with the greatest kinetic energy leave. the surface of the skin.arrow_forwardAerobic exercise causes your cells to produce carbon dioxide and water. Why can you dehydrate during aerobic exercise even if you don’t perspire?arrow_forward
- It is estimated that you lose heat to cold water four times faster than to cold air. Your body is mostly water. What if your body had much less water in it, and the rest of it consisted of substances that heated and cooled as easily as metal. Would a cold environment be more chilling or not? Explain.arrow_forwardHow would a decrease in temperature affect your metabolic rate, What does this occur?arrow_forwardThermoregulation is a process used to maintain body temperature within an optimum range. Describe how the human body maintains body temperature in both hot and cold weather ensuring you explain the mechanisms that are involved.arrow_forward
- 1) Why you heat up when you exercise? 2) Why is exercising said to “burn calories”?arrow_forwardSome animals fall between endothermic and ectothermic. a) What is this thermoregulation category called? "_____thermy." b) Name one extinct animal with this kind of metabolism: c) Name one extant (living) animal which this kind of metabolismarrow_forwardTwo identically sized and shaped boneless skinless chicken breasts are purchased for dinner. One chicken breast is cut into approximately 1-inch pieces, while the second is left whole. Both will be cooked at the same temperature and in the same manner. Using information learned about surface-to-volume ratios, which will cook faster? Justify your response.arrow_forward
- The thermoneutral zone is the range of body temperatures over which an animal can maintain a constant basal metabolic rate. Which of the following patterns about thermoregulation is true? A. Below the lower critical threshold, animals must decrease their metabolic rate in order to maintain body temperature B. Animals living in the arctic have higher critical temperatures than do animals in the tropics C. When outside temperatures are below the lower critical temperature for an animal, animals in the arctic increase their metabolic rate faster than do animals in the tropics D. All of the above E. None of the abovearrow_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_forwardMan live in a place with the following weather parameters, outside Temperature about 45°C, and humidity about 70%. How could he loses his internal heat?arrow_forward
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