EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Females selecting traits she desires in a male
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Males being more likely to survive than females
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Males and females competing for limited resources
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Artificial selection by humans
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Detailed explanation-1: -This form of sexual dimorphism displays one theory of sexual selection, the so-called sexy-sons hypothesis. In the theory, females try to select males which will produce offspring which will be most attractive to the next generation of females. In other words, the mother wants her son to be able to attract a mate.
Detailed explanation-2: -The phenomenon of sexual dimorphism is a direct product of evolution by natural selection, in that the struggle for reproductive success drives many male and female organisms down different evolutionary paths.
Detailed explanation-3: -Sexual dimorphism means that the two sexes of a species differ in external appearance. Although some sexual dimorphism is the result of natural selection, most is thought to have evolved through sexual selection.
Detailed explanation-4: -sexual dimorphism, the differences in appearance between males and females of the same species, such as in colour, shape, size, and structure, that are caused by the inheritance of one or the other sexual pattern in the genetic material.