Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 48.7, Problem 1SB
Summary Introduction
To review:
The two mechanisms that an ectothermic animal can use to regulate its temperature.
Introduction:
The animals maintain their body temperature within the range (0°C to 45°C), because their cells cannot survive beyond this temperature range. The lipid bilayer of cells get frozen below 0°C, and the proteins and
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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.
Describe thermoregulation of endothermic and ectothermic animals
Describe the function of major hormones (steroid hormones, epinephrine, insulin & glucagon) and major endocrine glands (hypothalamus, pituitary, adrenal glands, pancreas) and how they regulate metabolism.
Explain the organs and tissues different groups use for osmoregulation including how the countercurrent exchange in the loop of Henle allows mammals to recycle water and ions.
Explain how organisms control osmolarity, and how their particular strategies depend on the environment they inhabit.
Chapter 48 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 48.1 - Define the terms osmosis, osmolarity, hypoosmotic,...Ch. 48.2 - How are protonephridia, metanephridia, and...Ch. 48.3 - Prob. 1SBCh. 48.3 - Prob. 2SBCh. 48.4 - Prob. 1SBCh. 48.5 - Prob. 1SBCh. 48.5 - Reptiles and birds excrete nitrogenous wastes in...Ch. 48.6 - Distinguish between ectothermy and endothermy....Ch. 48.7 - Prob. 1SBCh. 48.7 - Prob. 2SB
Ch. 48.8 - Prob. 1SBCh. 48 - Which of the following statements about...Ch. 48 - Prob. 2TYKCh. 48 - Prob. 3TYKCh. 48 - Prob. 4TYKCh. 48 - Prob. 5TYKCh. 48 - Which of the following correctly describes a part...Ch. 48 - Which of the following is an example of...Ch. 48 - Prob. 8TYKCh. 48 - Prob. 9TYKCh. 48 - Prob. 10TYKCh. 48 - Prob. 11TYKCh. 48 - Discuss Concepts As a person ages, nephron tubules...Ch. 48 - Prob. 13TYKCh. 48 - Prob. 14TYKCh. 48 - Prob. 15TYKCh. 48 - Prob. 16TYKCh. 48 - Prob. 1ITDCh. 48 - Prob. 2ITDCh. 48 - Prob. 3ITD
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- In general terms, explain the role in insects of the malpighian tubules and rectum in conserving water, ions, and amino acids and removing nitrogen waste.arrow_forwardSharks live in marine (saltwater) habitats and are osmoconformers. Based on this information which of the following is/are true (select all that apply): A. Sharks have tissues/body fluids that are isoosmotic relative to the environment B. Sharks have tissues/body fluids that are hypoosmotic relative to the environment C. Sharks devote considerable energy to osmoregulation D. Sharks do not devote much energy to osmoregulationarrow_forwardWhich statement regarding thermoregulation is TRUE? ectotherms thermoregulate by moving between sunny and shady locations whereas endotherms do not thermoregulate endotherms thermoregulate by producing heat through metabolic reactions whereas ectotherms do not thermoregulate ectotherms and endotherms both thermoregulate, but they do it through different methodsarrow_forward
- 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_forwardExplain the process of thermoregulation in the following: Elephants: Emperor Penguinsarrow_forwardIrritability in animals can be measured or determined using the right methodology and apparatus. Cite then describe at least three (3) laboratory apparatus used to measure irritability.arrow_forward
- Which 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_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_forwardexplain the fluid regulation process in animals.arrow_forward
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