This is in ecology please help me identify what the variables in this equation mean R=aM^b 1. INTRODUCTIONAll biological activities depend on metabolic energy, andthus understanding why rates of metabolism vary is offundamental importance. A major factor affecting meta-bolic rate is body size. Respiratory metabolic rate (R)typically scales with body mass (M) according to thepower function R=aM, where a is a normalizationconstant (antilog of the intercept in a log-log plot) and bis the scaling exponent (slope in a log-log plot). Rubner(1883) observed that the scaling exponent b was 2/3 indogs of different size, which he explained using the theoryof Sarrus & Rameaux (1839: cited in McNab 2002).According to this theory, to maintain a constant bodytemperature, endothermic animals must metabolicallyproduce enough body heat to exactly balance the amountof heat lost through their body surface. Therefore, sincebody surface scales as M, so should metabolic rate.However, in broader comparisons of different species ofmammals, Kleiber (1932) found that b was closer to 3/4than 2/3. Since that time, it has been commonly assumedthat b is typically 3/4, a generalization known as 'Kleiber'shelaw' or the 3/4-power law' (Brody 1945; Hemmingsen

Here R represents the Respiratory metabolic rate. a is the normalisation constant. b is the scaling…

Answered: 1. INTRODUCTION All biological…

1. INTRODUCTION All biological activities thus understanding wh fundamental importanc bolic rate is body size typically scales with b power function R=ai

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter19: Temperature, Thermal Expansion And Gas Laws

Section: Chapter Questions

Problem 71PQ

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