1. Generate a hypothesis for how environmental temperature will…
Question Answered step-by-step 1. Generate a hypothesis for how environmental temperature will… 1. Generate a hypothesis for how environmental temperature will affect the metabolic rate of an endotherm. Would you expect this relationship to be different in an ectotherm? 2. The data in the table below were collected from an insect (an ectotherm) and a mouse (an endotherm). In this experiment, each animal was kept inside of their own chamber at two different temperatures. In each chamber, a gas sensor recorded the amount of carbon dioxide produced by the animal. Recall that measuring CO2 production is a common method for estimating metabolic rate. AnimalAverage Mass (g)External Temperature (degrees C)Average CO2Production (mL/min)Average Mass-Specific CO2Production (mL/g/min)Insect2.15222.46[A]151.99[B]Mouse15.4722116.67[C]15163.39[D]Calculate the mass-specific CO2 production in each treatment by dividing the CO2 production by the animal’s mass. Why is this step necessary? 3. Using your calculated values, compare the metabolic rates of endotherms and ectotherms at room temperature (22 degrees C). 4. How did external temperature affect the metabolic rate of the mouse? How did external temperature affect the metabolic rate of the insect? Do these results support or reject your hypothesis? Provide a reasonable explanation for these results. 5. Which mode of energy metabolism (endothermy or ectothermy) would be more advantageous for animals living in environments with low food availability? Explain your answer. 6. Which mode of energy metabolism (endothermy or ectothermy) would be more advantageous for a small, non-insulated animal living in a cool wet environment? Explain your answer. 7. Propose an experiment to test the effects of an endothermic animal’s activity level on its metabolic rate. Science Chemistry CHEM 200 Share QuestionEmailCopy link Comments (0)
