An organism's fitness can be best measured by observing its __________.

Question

Quizplus · Accepted Answer

Fitness is determined by an organism's ability to survive and reproduce in its environment. Thus, the number of offspring an organism produces is the best indicator of its fitness because it shows how well it is able to pass on its genes to the next generation. Factors like strength, size, and color may be important for survival, but they do not necessarily indicate an organism's reproductive success.

An Organism's Fitness Can Be Best Measured by Observing Its