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
Free Insulin Diabetes mellitus Blood sugar
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
Premium Immune system
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
Premium Milk Cattle Heat
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
Premium Organism Reproduction Life
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
Free Photosynthesis Energy Plant
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
Premium Homeostasis Metabolism Cybernetics
Biology Topic One Maintaining a Balance 1. What are enzymes? Identify their role in metabolism. 2. Enzymes are made up of ____________‚ _____________‚ ______________ and ________________. 3. Enzymes are large __________ that are coiled up to form an ____________ __________. 4. The molecule that the enzyme acts on is called the ______________. 5. Use a model to illustrate how enzymes work. 6. Explain how enzymes
Premium Blood Carbon dioxide Red blood cell
its internal concentration of salts k. Poikilotherm- an organism whose body temperature changes with its surrounding environment l. ectotherm -- an organism whose body temperature is controlled by its surrounding environment m. homeotherm- an animal that maintains a controlled internal body temperature using its own heating and cooling of mechanisms n. Endotherm- an animal whose internal body temperature is a result of internal sources of heat o. a sexual reproduction -- reproduction accomplished
Premium Organism Metabolism Life
within a narrow range‚ regardless of the temperature of their surroundings‚ these species are known as endotherms. Scientists have been studying species such as endotherms for years. Recently‚ scientists came about an observation. How do bees or any endothermic animal‚ generate the heat required to warm itself? Although Bees are invertebrates‚ they are one of the few of them to be an endotherm. This observation went into a series of experiments. These experiments revealed that before a bee flies
Premium Temperature Insect Thermodynamics
conformers and regulators. Conformers‚ or ectotherms‚ are not capable of maintaining their internal environment when faced with unfavorable external conditions. Therefore‚ they are forced to constantly seek out favorable environments and exert behaviors designed to counteract the environmental challenge. An example of a conformer is a lizard‚ which will bask in the sun to increase its internal temperature or seek shade to decrease it. Regulators‚ or endotherms‚ use physiological mechanisms to counteract
Premium Organism Homeostasis