Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 40, Problem 6TYU
Summary Introduction
To explain: Whether an animal is an endotherm or an ectotherm.
Introduction:
Thermoregulation is a process where an animal maintains its internal temperature within a tolerable range. Endotherm is any animal that maintains its body temperature independent of external environment temperature. Ectotherm is also called as cold-blooded animal. Ectotherm mainly depends on environmental temperature.
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Predict what would happen to the metabolic rate of the mouse if you increased the temperature. Predict what would happen to the metabolic rate of the mouse if you decreased the temperature (You can make this prediction with text or with lines on your graph). Support your prediction with evidence about endotherms and ectotherms. (Hint: Think about what happens to your body when you get hot or cold.)
An average adult cheetah has a mass of 44,010 grams and a metabolic rate of 61.77 joules per
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Draw a negative feedback loop for maintaining homeostasis for thermoregulation where your body temperature is above the set point. In your drawing, include the stimulus, sensor, integrator, effector, and the arrows between the components to indicate how they all relate (be sure to indicate what each of these components are in your body, for example, what is your integrator). Further, answer the following two questions. First, what might be different between the response of an endothermic and an ectothermic animal in maintaining homeostasis? Second, describe what a negative feedback loop is and how it pertains to homeostasis.
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 1) It is _____for aquatic vertebrates to maintain a body temperature different from their surroundings because ______. A) easier; water is a much better insulator than air due to its greater density B) easier; it is possible for fish to absorb heat from the surrounding water by countercurrent exchange even when the water is colder than the fish C) harder; water is a better conductor of heat than air D) harder; terestrial vertebrates can use countercurrent exchange to absorb heat from air that is cooler than their bodies 2) Compared to terrestrial environments, marine environments have_____." A) greater differences in temperature between hot and cold seasons B) smaller differences in temperature between hot and cold seasons C) the same amount of seasonal variability in temperaturearrow_forwardwhich of the following statements are true about homeostasis? Select all that apply. a. The selective permeability of the cell membrane allows for thermoregulation. b. Homeostasis is an organism‘s way of maintaining constant and balanced internal processes. c. Ectotherms rely on environmental heat to maintain homeostasis. d. Homeostasis works by a system of positive feedback.arrow_forwardConsider the following energy demands: basal metabolism, reproduction, thermoregulation, activity, and growth; How should the energy spent toward these demands differ between an endotherm and an ectotherm of the same size?arrow_forward
- for aquatic animals such as sharks, how do the animals maintain their body temperature when they are in warmer or colder waters? do they have a method where they can decrease or increase their body temperatures slightly such as torpor in birds?arrow_forwardWhich of the following statements is True?a. Ectotherms generate most of their body heatmetabolically.b. Ectotherms include birds and mammals.c. Ectotherms experience variable body temperatures.d. Ectotherms are known as “warm-blooded” animals.arrow_forwardIn terms of body temperature regulation, contrast “cold-blooded” (Ectothermic or poikilothermic) and “warm-blooded” (Endothermic or homeothermic). Identify three animals that are ectothermic and three animals that are endothermic. What is the adaptive advantage of endothermy?arrow_forward
- 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?arrow_forwardResearch the behaviours of a specific ectothermic animal. How do specific behaviours allow for the animal to control its body temperature in cool and hot conditions? How do specific parts of the animal’s anatomy help with thermoregulation? Use a feedback diagram to show how this animal uses thermoregulation in one of these conditions: ectotherm in cool conditions ectotherm in hot conditions Be sure to use ⊕ and ⊝ symbols in the feedback diagram to add important details.arrow_forwardWhen you exercise, your body depletes oxygen faster. As a result, respiration and depth of breathing increases to take in more oxygen. In addition, your heart rate increases to speed up the delivery of oxygen to your muscles that are exercising. What type of homeostatic mechanism does this represent? a) Positive feedbackb) Negative feedbackc) Feedforwardarrow_forward
- Consider an ectotherm and an endotherm of equal body mass. Which of the following would you expect to be true? -both animals require the same amount of energy per unit mass -the ectotherm requires more daily calories from food than the endotherm -the endotherm requires less energy per unit mass but more total energy than the ectotherm -the ectotherm requires less energy per unit mass but more total energy than the endotherm -the ectotherm could survive a longer period without food relative to the endothermarrow_forwardWhich of the following statements best summarizes the difference between ectothermic and endothermic organisms? Group of answer choices Ectotherms absorb external heat, but endotherms use metabolic heat to maintain a warm, steady body temperature Ectotherms are warm-blooded, but endotherms are cold-blooded Endotherms control their temperature, but ectotherms have no control over their temperature Endotherms are warm-blooded, but ectotherms are cold-bloodedarrow_forwardYou are designing an experiment to determine if you can make desert kangaroo rats active at noon. At noon the ground and air are warmer than the internal temperature of the rats. You decide to provide the kangaroo rats with enough water to ensure they can maintain body temperature homeostasis. Based on a simplified model, you determine that at noon, kangaroo rats: - Absorb 8 watts of radiation - Generate 1 watt of metabolic heat - Re-radiate 1 watt - Exchange a total of 2 watts with the surrounding desert ground and air via conduction - Exchange 4 watts through convective processes The kangaroo rat is not in energy balance. Since kangaroo rats lose 1 watt through latent heat (i.e. evaporative cooling) with each 2 ml of water consumed, how much water would you need to provide the kangaroo rat so that it can reach homeostasis? 04 8. O 12 O24 O 28 32arrow_forward
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