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91 hhat are secodlaxy Sezual charactertshicsGive tuoo eanplesL0 |
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Answer» Secondary sex characteristicsare features that appear duringpubertyinhumans, and atsexual maturityin other animals. These are particularly evident in thesexually dimorphicphenotypic traitsthat distinguish thesexesof a species, but unlike thesex organs, are not directly part of thereproductive system. They are believed to be the product ofsexual selectionfor traits which displayfitness, giving an individual an advantage over its rivals incourtshipandaggressiveinteractions. They are distinguished from theprimary sex characteristics, the sex organs, which are directly necessary forsexual reproductionto occur. |
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