The Hardy-Weinberg Model is...

a
available at local hobby stores and retailers throughout the Greater Metro Atlanta area.
b
always occurring within individual organisms in nature.
c
a mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population.
d
only useful in the lab and cannot be practically applied to real-world populations of organisms.

c a mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population.