Explain why sexual dimorphism existsexplain how two differen

Explain why sexual dimorphism exists—explain how two different forms of selection could result in sexual dimorphism.

Solution

Answer=

Sexual dimorphism exists because & 2 different forms exist result in sexual dimorphism

The differences between colour ,voice ,size between two sexes in different animal species is called as sexual dimorphism

this phenomenon is well expressed in birds normally males are bigger more vividly coloured & have more melodious voice compared to female

In monogamous species the bright colour of males appear as a necessity to make themselves noticed on the territory they occupied for nesting ,for the optical marking of that territory

Placed in visible places ,these males warn other males from their own species that ,the territory is occupied ,to keep them away & for attracting easier to females in their territory

monogamous species also usually posses a strong or melodious voice for sonorous marking

In case of polygamous species the vivid color of males is even more stressed ,sometimes only during the mating periods

bright plumage is an optic signal for intidimidation & keeping away other competing males because the male with brightest plumage will dominate the battle of field & to mate with as many as females gathered for mating

it is beneficial for species

advantageous for females when they are brighter & bigger .they are fecundated by males gathersd around them

bigger females are more efficient for protecting their young ones & delivering food for them

all are carried out by natural selection