If you.compared the body heat loss of two different Arctic animals, a large" polar bear and a small snowshoe hare, which would lose all their body heat the fastest? Explain your answer with respect to differences in the overall surface area to volume ratio between the two animals.
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Hello, please answer the following attached Biology question correctly and fully. Please make sure to "Explain your answer with respect to differences in the overall surface area to volume ratio between the two animals", as well. Thank you.
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- True or False? Excessive body water losses via sweating during exercise can lead to decreases in body temperature.Bees and sharks show regional endothermy, what is the critical factor for generating metabolic heat in both cases? Ruffling the pelage Counter current heat exchange Muscle contraction Increased ventilation rateDifferences between heat cramps, heat exhaustion, and heatstroke; the role of positivefeedback loops in hyperthermia; and howand at what temperature range heatstrokecan lead to death
- Thermoregulation is a process used to maintain body temperature within an optimum range. Describe how the human body maintains body temperature in both hot and cold weather ensuring you explain the mechanisms that are involved.Which of the following states about Basal Metabolic Rate is NOT true? A) Basal Metabolic Rate is linearl proportional to weight B) Basal Metabolic Rate is the amount of energy need to maintain body functions C) Basal Metabolic Rate represents the energy needs of a human at rest D) As size increase Basal Metabolic Rate also increases E) Basal Metabolic Rate can be measured indirectly via oxygen consumptionDieters frequently fast in an attempt to reduce their weight.During these fasts, they often lose considerable muscle massrather than fat. Why is this so?
- The calorie is the common unit for food energy. How many calories would an 80.7 kg patient with model hypothermic body with a 29 degrees C temperature need to burn to get their body temp from 29 degrees C to 35 degrees C?The long-term stability of weight is often considered a marker of energy balance. According to Hall et al., why does weight change in the short term not necessarily represent energy imbalance? Changes in body weight include changes in body water, which may be variable Rapid turnover of fat stores can lead to short term changes in body weight Variations in energy stored per unit of body weight exist All of the aboveThe human body is composed of water, proteins, fat, and minerals. Its specific heat reflects thiscomposition. With 75% water and 25% protein, what would be the specific heat of the body?Differentiate the three ways of heat transfer.
- When you jog, most of the food energy you burn above your basal metabolic rate (BMR) ends up as internal energy that would raise your body temperature if it were not eliminated. The evaporation of perspiration is the primary mechanism for eliminating this energy. Determine the amount of water you lose to evaporation when running for 32 minutes at a rate that uses 400 kcal/h above your BMR. (That amount is often considered to be the "maximum fat-burning" energy output. The latent heat of vaporization of water at room temperature is 2.5 106 J/kg.)The metabolism of 1 gram of fat generates approximately 8.65 kcal of energy and produces approximately 1 gram of water. (The hydrogen atoms in the fat molecule are transferred to oxygen to form water.) What fraction of your need for water will be provided by fat metabolism?Heat exchange with the environment depends on the surface area-to-volume ratio of the body. Assuming that the body shape of an animal is at least somewhat spherical, a considerable decrease in body size would _______ the surface area-to-volume ratio, and the ability to exchange heat with the environment would _______. A. increase; increase B. increase; stay about the same C. increase; decrease D. decrease; increase E. decrease; stay about the sameAccording to Hall et al., REE is the rate of energy expenditure at rest and comprises approximately two-thirds of energy expenditure. True False