PEARSON ETEXT FOR CAMPBELL BIOLOGY
12th Edition
ISBN: 9780135988046
Author: Urry
Publisher: PEARSON
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Chapter 40, Problem 7TYU
Summary Introduction
To explain: Which animal uses the largest fraction of its energy budget for homeostasis.
Introduction:
Homeostatic regulation is a process performed by an animal to maintain its internal environment. An animal maintains a steady state, a relatively constant internal environment, even when the external environment changes significantly.
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An ectotherm (a) has a higher rate of enzyme activity than a typical endotherm (b) has a variety of homeostatic mechanisms or regulating body temperature (c) depends on sensors in the hypothalamus to regulate temperature (d) may use behavioral strategies to help adjust body temperature (e) must expend more energy on thermoregulation than an endotherm
1. What is the relationship between respiration and temperature in fish?
2. What do you think is the relationship between fish behavior and temperature?
3. Does the data in the graph, support internal temperature regulation or external temperature regulation by the goldfish?
4. Does other factors (besides temperature) affect the rate of a fish?
5. What do you think happens to the activity of fish in cold climates during the winter months?
6. Why do you think cold-blooded animals, like the goldfish, change their breathing rate when the surrounding temperature changes?7. Is Thermal Homeostasis of a Gold Fish similar to thermal homeostasis in human? If not, what is the difference?
8. How do you think this might explain the results of a "Thermal Homeostasis Gold Fish" experiment?
What occurs as body size increases in animals ?
there is a decrease in the surface-to-volume ratio.
reproduction becomes limited to terrestrial environments.
there is greater variability in metabolic rate.
migration to tropical areas becomes necessary for thermoregulation.
it becomes more difficult to conserve body warmth in cold environments.
Chapter 40 Solutions
PEARSON ETEXT FOR 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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- Which of the following is/are a typical feature of animals as they increase in size? I. Increased ability to exchange materials with the environment using only diffusion II. Decreased surface area-to-volume ratio III. Decreased total metabolic demand III only II only I and II II and III I onlyarrow_forwardElephant seals do deep dives to forage for food. The energy used by the seals in diving depends on their body composition; for example, fatter seals use less energy to swim to the surface at the end of a dive, allowing them to takelonger, more productive dives. Explain why you’d expect this to be the case.arrow_forwardConsider 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_forward
- As body size increases in animals, there is greater variability in metabolic rate. it becomes more difficult to conserve body warmth in cold environments. migration to tropical areas becomes necessary for thermoregulation. there is a decrease in the surface-to-volume ratio. reproduction becomes limited to terrestrial environments.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_forwardImagine if mermaids are real. What are their biological and Physical demands (LOCOMOTION, BREATHING, and THERMOREGULATION)?arrow_forward
- Consider 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_forwardNutrition and Digestion Identify the different modes of feeding mechanisms found in the Animal Kingdom, describe each and give 2 example animals for each mode. Why do Cnidarians, Flatworms and Protists have simple or no extensively developed digestive system? (clue: mention their digestive structure and their mode of feeding) What are the structural adaptations of snakes that allowed them to eat and digest a whole prey? Why do insects of one species have a changing diet requirement during their life history? Different birds have varying food habits, discuss the structural and physiological adaptations that allow them to process these foods. What are the four stages of the digestive process, describe each stage/step and indicate what are the products/substances produced and their fate? Discuss the role of the endocrine system in controlling digestion. (no plagiarism pls, thank u!)arrow_forwardWhat adaptations help your animal(lion) gather or eat food?arrow_forward
- When 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_forwardlight stimulus Refer to the figure below to answer the question that follows: 40 Bobcat (endotherm) H Enake (netother) 10 10 40 20 30 Ambient temperature (°C) 51. The diagram above shows the body temperature vs ambient temperature for a bobcat and snake. The Despite this extra energy animal that is expending more energy at lower temperatures is the expenditure, the payoff is that a. snake; it can be active during a wide range of temperatures b. bobcat; it can conserve energy c. snake; it can conserve energy d. bobcat; it can be active during a wide range of temperatures snake; it can hide for longer in Mr. vonk's physics room e. Body temperature (°C) 20arrow_forwardThe range of regulated body temperatures in mammals is about 36 to 40°C , while in birds it is slightly higher, 38 to 42°C, close to the limit compatible with life. Why do you imagine birds maintain higher body temperatures thanmammals? Do you think eagles and hummingbirds maintain the same body temperatures? Explain.arrow_forward
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