Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 39, Problem 4TYK
Summary Introduction
Introduction:
Endotherms are the animals that are able to generate heat inside the body in order to maintain the body’s temperature. On the other hand, ectotherms rely on the external sources for heat.
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Check out a sample textbook solutionStudents have asked these similar questions
A. List some invertebrates who are endotherms
B. How can something be ectothermic but also maintain homeothermy?
C. What are some ways that ectotherms (so called cold blooded) animals can adjust their temps behaviorally?
Ectotherms cannot be considered homeotherms, since they do not use mechanisms to keep their internal body temperatures at a constant temperature.
A. True
B. False
Research 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.
Chapter 39 Solutions
Biological Science (6th Edition)
Ch. 39 - Prob. 1TYKCh. 39 - 2. Which of the following examples best describes...Ch. 39 - As an animal gets larger, which of the following...Ch. 39 - Prob. 4TYKCh. 39 - 5. For each of the following, explain how...Ch. 39 - Prob. 6TYUCh. 39 - Explainwhymostendotherms are homeothermic and...Ch. 39 - Prob. 8TYUCh. 39 - Prob. 9TYPSSCh. 39 - 10. The dinosaur Apatosaurus (Brontosaurus) is one...
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- how do ectotherms adjust body temperature. what are some costs and benefits of ecothermey.arrow_forwardPlease give correct answerarrow_forwardDue to human activities more carbon dioxide (CO2) is dissolving into the air, the ocean takes up more CO2 and becomes increasingly acidic. Increased ocean acidity makes it more difficult for marine animals to produce their calcium-rich hard parts. Explain three types of invertebrates that are likely to be adversely affected by an increase in ocean acidity.arrow_forward
- Regulation of physiological variables occurs primarily through mechanisms. a. negative feedback b. positive feedback c. urine formation d. feedforward e. myogenicarrow_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_forwardUnder what conditions could an ectotherm be homeothermic?arrow_forward
- The function of the structure labeled in the above imagearrow_forwardWhich of the following statements regarding marine osmoregulators is (are) true? A. Most marine invertebrates are osmoregulators. B. Marine osmoregulators tend to lose water to the environment by diffusion. C. Marine osmoregulators are isoosmotic with the external environment. D. Marine osmoregulators bring salt into the body via active transport processes in the gills and skin. E. All of the above above answer choices correctly answer the question.arrow_forwardAs human activities put more and more carbon dioxide (CO2) into the air, the ocean takes up more CO2 and becomes increasingly acidic. Increased ocean acidity makes it more difficult for marine animals to produce their calcium-rich hard parts. List three types of invertebrates that are likely to be adversely affected by an increase in ocean acidity.arrow_forward
- Give answer to all parts 1.) Describe trade-offs faced by endotherms vs ectotherms – focus on benefits and downsides for each. 2.) Discuss environmental pressures faced by organisms in a rocky intertidal zone. What adaptations do you expect to find in invertebrates living there? 3.) Discuss nutrient environments in freshwater habitats, and how they are related to the speed of water flow.arrow_forwardWhat role does vasopressin play when there is a decrease in blood volume? a. It acts on kidneys to increase water retention. b. It excites magnocellular neurosecretory cells. c. It stimulates the sympathetic division of ANS. d. It motivates animals to shun water.arrow_forwardCompare and contrast the functions of the kidneys and the heart using a table. If both were candidates running for the presidential elections inside your body, which one would choose and why? If you do not want to vote for either the heart or the kidney, which organ would you vote for and why? Think of a way to make your reason more substantial by considering the role of both the heart and the kidneys in blood pressure regulation.arrow_forward
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