To determine: The costs and benefits of ectothermy.
Introduction: In order to survive and function properly animals need to maintain
To determine: The strategies used by ectotherms to adjust their body temperature.
Introduction: Animals need to maintain a balanced state of body temperature to survive and function properly. The body temperature is maintained within narrow limits despite the changes in the surrounding temperature through a process called thermoregulation.
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Chapter 39 Solutions
Biology (MindTap Course List)
- How does the differences of ectotherms and endotherms affects their metabolism?arrow_forwardCompare the costs and benefits of being an ectotherm, and describe strategies ectotherms use to adjust their body temperature.arrow_forwardWhich of the following is not a way that ectotherms can change their body temperatures? a. Sweating for evaporative cooling. b. Adjusting the timing of their daily activities. c. Seek out or avoid direct sunlight. d. Huddle in a group.arrow_forward
- Differentiate between ectotherms and endothermsarrow_forwardDistinguish between ectothermy and endothermy. Give one advantage and one disadvantage for each form of thermoregulation.arrow_forwardWhat animal is not a homeothermic, endothermic, poikilothermic, and ectothermic? and what does this animal do to regulate its body temperature?arrow_forward
- Which 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_forwardMany marine fish swim into deep, cold water to pursue prey or avoid predators. How does cold temperature influence their ability to swim? What other affects will the cold water have on their body?arrow_forwardWhat is the trade-off of ectotherms with regard to maintaining an internal environment that doesn’t vary much? Ectotherms are larger than endotherms because they need to have a larger surface area to volume ratio in order to either increase or lower their temperature. Ectotherms usually have fur in order to conserve heat when they live in very cold environments. Ectotherms are smaller than endotherms because they need more surface area to dissipate heat relative to their insides. Ectotherms can survive in a wider variety of habitats because they are smaller and can behaviorally adapt to a wide variety of temperatures.arrow_forward
- From the list of strategies for dealing with harsh cold environments, choose those that an ectotherm would employ. See image attatched.arrow_forwardWhat 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_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
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