A female organism is defined as the physiological sex that carries eggs. Unlike males, females are found in every species as they are vital to the process of reproduction, whether sexual or asexual. In humans, we refer to females as women if they are adults and girls if they are children or teenagers. Biologically, women have certain characteristics that distinguish them from men as a result of sexual dimorphism. Generally, these differences are most notable in height, weight, and body structure, though this is not always the case. A major difference between men and women is a woman’s ability to become pregnant and nurture a baby.