A new mutation allows a cheetah to run faster and hunt down more prey than its slower counterparts. This mutation increased the _________ of the cheetah.
A - Analogy
B - Equilibrium
C - Natural selection
D - Fitness
E - Homology
Answer: D - Fitness
Evolutionary FITNESS is the measurement of the ability of a trait to increase or decrease the relative contribution of offspring by an individual in the next generation. The better the trait the more offspring the individual will provide.