BIO 325 MIDTERM 1 QUESTIONS AND CORRECT ANSWERS WITH COMPLETE SOLUTIONS | NEW VERSION 2026

BIO 325 MIDTERM 1 QUESTIONS AND CORRECT
ANSWERS WITH COMPLETE SOLUTIONS | NEW
VERSION 2026




Isometric - ANSWERS Two variables scale in direct proportion to each other:
The scale factor =1


Allometric - ANSWERS Non-equal scaling: Objects change shape in order to
remain functional equivalence. Scale factor >1 or <1


Allometric Equation - ANSWERS Y= aM^b


M= mass (typically on x axis)
a= Elevation
b= scale factor


Independent Scaling - ANSWERS The scale factor, b=0


Logged Allometric Equation - ANSWERS Log(Y)= Log(a)+ b*Log(M)


Makes for straight lines where b is the slope

, Geometric Scaling - ANSWERS Objects increase by same geometric
dimentions--complicated with Surface area to volume ratio


SA:Volume Ratio - ANSWERS Gets increasingly smaller as objects size increases


Y - ANSWERS variable of interest (height, width, density)


a - ANSWERS Coefficient (elevation) specific to the object (eg. spheres, cubes,
fish)


M - ANSWERS Mass of object


b - ANSWERS scaling exponent


Surface area scaling exponent - ANSWERS b=.67


Linear Dimension scaling exponent - ANSWERS b=.33


Klieber metabolic rate scale factor - ANSWERS b=.75


Rubner metabolic rate scale factor - ANSWERS b=.67


Isotrophic - ANSWERS mechanical properties are not directionally dependant