mechanisms that control body temperatures of ectotherms is an important part of population ecology. Body temperature determines sprint speeds of snakes and lizards‚ flying abilities of insects‚ survival rates of interdal organisms‚ and rates of water loss in plants (Course Material). Ectotherms are organisms that resemble their environment in terms of body temperature‚ and unlike endotherms‚ do not use metabolic processes to control their body temperature. Ectotherms’ body temperature depends on their surrounding
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neither ectotherms nor endotherms. Instead‚ the researchers coined the
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Under each heading write their characteristics!Click on each underlined group to learn more! Fish Amphibians Birds Reptiles Mammals Fish • 3 Types 1.Jawless (ex.-Lamprey‚ hagfish) 2.Cartlaginous Fishes(ex.-shark) 3.Bony Fishes(ex.-tuna‚ jack) • Ectotherms- body temperature is dependent on the surroundings. • 2 chambered heart • Have gills
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behavior of an ectotherm. An ectotherm is an organism that relies on the environment to regulate its body temperature. Organisms such as Pseudemys (turtles) and Lacertilia (lizards) are examples or ectotherms. After arriving at Maxcy Gregg Park and analyzing the temperatures of four microhabitats within two habitats with infrared thermometers‚ the temperatures were compared between the microhabitats. Then‚ one habitat was chosen to analyze the temperatures between temperatures of ectotherms using I-buttons
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Homeostasis literally means “same state” and it refers to the process of keeping the internal body environment in a steady state‚ when the external environment is changed. The importance of this cannot be over-stressed‚ as it allows enzymes etc to be ‘fine-tuned’ to a particular set of conditions‚ and so to operate more efficiently. Much of the hormone system and autonomic nervous systems is dedicated to homeostasis‚ and their action is coordinated by the hypothalamus. In Module 2 we saw how
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Animal Biology - Study Guide 2013 Professor: Marty Leonard Room 4060 LSC e-mail: mleonard@dal.ca Below you will find textbook readings and a summary of the lecture material for each of the seven lectures in the Animal Biology unit. I would be pleased if you read through each chapter‚ however‚ I will only test you on the lecture material that corresponds to the sections of the textbook that I indicate below. You will notice that in some of the assigned sections there is material that
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KLS G609: LIVESTOCK BIOCLIMATOLOGY AND ETHOLOGY • Livestock adaptation to environmental effects of heat‚ humidity‚ light‚ pressure and latitude. Biological rhythms and photo-periodism. • Effects of environment on Livestock reproduction‚ nutrition‚ and health. • Livestock ethology and physiological basis of Livestock behaviour‚ behaviour patterns including social behaviour and management of behaviour. • Livestock welfare and requirements in housing‚ transportation and slaughter‚ management
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its internal concentration of salts K. Poikilotherm - An organism whose body temperature changes with its surrounding environment L. Ectotherm - An organism whose body is controlled by its surrounding environment M. Homeotherm - An animal that maintains a controlled internal body temperature using its own heating and cooling mechanisms N. Endotherm - An animal whose internal body temperature is a result of internal sources of heat O. Asexual reproduction - Reproduction accomplished
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Assignment 2 Define the following Terms: 1.) Endotherm: Organisms that rely heavily on internally derived metabolic heat energy‚ Hm (Pg. 109) 2.) Ectotherm: Animals that rely mainly on external sources of energer for regulating body temperature. (pg. 109) 3.) Poikilotherms: Animals whose body temperature varies directly with environmental temperatures. (pg. 109) 1.) Concept 6.2 Review #2 during severe droughts‚ some of the branches of shrubs and trees die while others survive. How might
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stay constant. An example of homeostasis is Thermoregulation. Thermoregulation is the ability of an organism to keep its blood temperature within a certain boundary‚ even though the surrounding temperature is very different. The purpose of the Thermoregulatory homeostatic control system is to balance thermal inputs and thermal losses in the body to maintain a relatively constant core temperature of
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