animals whose organisms possess unique characteristics. When comparing the cat‚ of the class Mammalia‚ to that of the class Reptilia‚ five attributes that are quite different between the classes are their thermoregulation‚ epidermis‚ metabolic rate‚ reproduction‚ and body structure. Thermoregulation‚ for mammals and reptiles are the opposite of each other when compared together. As mammals are warm-blooded‚ which means reptiles are cold-blooded. Mammals are warm-blooded creatures‚ is where the internal
Premium Mammal Animal Reptile
Natural selection _________. a. results in evolutionary adaptation b. is the result of sampling error c. does not affect allelic frequencies d. prepares organisms for future changes in the environment e. causes changes in the genes of the individual Biologically speaking‚ fitness increases when an organism _______________. a. survives many hardships b. lives for a long time c. passes on a greater proportion of its genes to the next generation d. is disease free e. gets stronger The evolutionary history
Premium Primate
The Warm and Cold Blooded Nature of Dinosaurs The debate of whether dinosaurs were cold blooded or warm blooded has been ongoing since the beginning of the century. At the turn of the century scientists believed that dinosaurs had long limbs and were fairly slim‚ supporting the idea of a cold blooded reptile. Recently‚ however‚ the bone structure‚ number or predators to prey‚ and limb position have suggested a warm blooded species. In addition‚ the recent discovery of a fossilized dinosaur heart
Premium Dinosaur
Maintaining a Balance 1. Most organism are active in a limited temperature range The role of Enzymes in metabolism‚ their chemical composition and specificity on substrates Role of enzymes * Enzymes are organic catalysts. They are protein molecules that increase the rate of the reactions in living organisms. * Without enzymes‚ metabolic reactions at body temperatures would be too slow to produce sufficient energy to maintain life * Intracellular enzymes are used in the cells
Premium Enzyme Metabolism Nervous system
Effects of Temperature on Goldfish Respiration Introduction This experiment was designed to identify the effect of cold-water temperatures on the respiration rate of goldfish. The respiration rates helped to identify the goldfish as being ectotherms or endotherms. Organisms exchange gases with their environment through a process called respiration or breathing. Aerobic respiration‚ also known as aerobic metabolism‚ occurs when oxygen is taken into the body and sent to all its cells; the oxygen is
Premium Oxygen Metabolism Null hypothesis
Red Kangaroo: Macropus Rufus The Kangaroo is an endotherm. Endotherms generate heat from their body’s metabolism. So their internal body temperature is independent of the external temperature. Endotherms eat more food than ectotherms. This higher food intake results in an increased level of metabolism‚ which is required to produce heat. The Red Kangaroo inhabits inland plains throughout Australia. They prefer open plains where trees and bushes are scarce. The fur on Kangaroos maintains an insulating
Free Kangaroo Energy Thermoregulation
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
Premium Heat Global warming Temperature
neither ectotherms nor endotherms. Instead‚ the researchers coined the
Premium Nutrition Carbon dioxide Obesity
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
Premium Animal Reptile Bird
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
Premium Thermoregulation Normal distribution Temperature