AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A distinct difference in size or appearance between the sexes of an animal
A
Sexual Dimorphism
B
Analogous Structures
C
Homologous Structures
D
Vestigial Structures
Explanation: 

Detailed explanation-1: -Sexual Dimorphism. Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. For example, in some species, including many mammals, the male is larger than the female. In others, such as some spiders, the female is larger than the male.

Detailed explanation-2: -Sexual body size dimorphism is a difference in size between the two sexes, usually measured as a ratio of the male to female body weight. In most hominoids, the male is larger than the female.

Detailed explanation-3: -Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in the coloration of sexes within a given species is called sexual dichromatism, commonly seen in many species of birds and reptiles.

Detailed explanation-4: -Some examples of sexual dimorphism include differences in stature, weight, morphology of the face, cognitive development, mortality, and disease prevalence. Although humans exhibit low levels of sexual dimorphism compared to other animals, differences between females and males are numerous.

Detailed explanation-5: -The difference in appearance between men and females of the same species, such as color, size, form, and structure, is known as sexual dimorphism.

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