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Discuss why 200kg Pacific halibut and 200kg Dall’s porpoise differ in their mass-specific
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- Describe why juvenile and adult halibut differ in their mass-specific metabolic rates.According to Kleiber’s law, for the vast majority of animals, an animal’s metabolic rate is proportional to m 0.75, where m is the animal’s mass. When we plot the graph of the common logarithm of the mass on the horizontal axis and the common logarithm of the metabolic rate on the vertical axis, we get a straight line. Explain why the graph is a straight line. What is the slope of the line?Briefly discuss why the mass specific metabolic rate of an elephant is much lower than that of a mouse.
- If Blue Whales each require 1,000kg of Krill per day to survive, and Krill have an energy density of 4,600 kJ/kg. How much of the energy contained in each kg of Krill eaten by a Blue Whale is available to the Killer Whale that feeds on a Blue Whale? (Provide an exact figure, not a percentage.)Briefly describe the change in the brown adipose tissue (BAT) mass and the brown adipose tissue (BAT) metabolism during the winter/hibernating season (Oct-Feb). Using the figure above and the relationship between the BAT metabolism and the BAT mass during the winter/hibernating season (Oct-Feb), what can you conclude about the role of the brown adipose tissue (BAT)The average daily metabolic rate for captive animals from weasels to elk can be expressed as a function of mass byr = 140.2m0.75,where m is the mass of the animal (in kilograms) and r is the metabolic rate (in kcal per day).
- Can I get this rewritten While the surface area of an organism scales as a square of the length (L^2) and the volume of an organism increases as the cube of the length (V^3), basal metabolic rate is not affected by the ratio of surface area to length of an organism.This can be seen in the data extracted from the ADW Quardvaark database as well which showed that mammals had an R^2 value of 0.7258 when looking at their length and basal metabolic rate and an R^2 value of 0.0074 when looking at the length of mammals and their length-specific basal metabolic rate. Birds had an R^2 value of 0.1678 when looking at their length and basal metabolic rate and an R^2 value of 0.0021 when looking at the length and length-specific basal metabolic rate of birds.If an insect that eats plant seeds containing 100 J ofenergy uses 30 J of that energy for respiration andexcretes 50 J in its feces, what is the insect’s net secondary production? What is its production efficiency?Comapare and contrast foregut and hindgut fermentattion and discuss which mode of fermentation do is suitable for a medium sized herbivore living in a rainforest where there are a lot of predators in the limited open grasslands.
- Why is egg buoyancy an indicator of egg freshness? Explain in terms of the chemical/biochemical reactions that occur during storage.If Blue Whales each require 1,000kg of Krill per day to survive, and Krill have an energy density of 4,600 kJ/kg, approximately how many joules (J) of energy are required by Blue Whales each day?Suppose you are measuring the metabolic rate of a young,growing cow by using the material-balance method. Whatprocedures could you use to take account of the cow’s growth, sothat you measure a correct metabolic rate?