Final answer:
Males and females of certain species display morphological differences, known as sexual dimorphisms, that enable us to tell them apart. Male flies are often larger in size and exhibit more elaborate colors and adornments compared to female flies.
Step-by-step explanation:
Males and females of certain species display morphological differences, known as sexual dimorphisms, that enable us to tell them apart. For example, male flies are often larger in size and exhibit more elaborate colors and adornments compared to female flies. This is because in many populations, there is more variance in the reproductive success of males, leading to strong selection pressures that result in the evolution of bigger body size and elaborate ornaments to attract females. Females, on the other hand, tend to be smaller and duller in decoration