Evolution Sexual reproduction

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the first fossilized evidence of sexual reproduction in eukaryotes stenian period, 1 1.2 billion years ago.


biologists studying evolution propose several explanations why sexual reproduction developed , why maintained. these reasons include reducing likelihood of accumulation of deleterious mutations, increasing rate of adaptation changing environments, dealing competition, , masking deleterious mutations. of these ideas why sexual reproduction has been maintained supported, size of population determines if sexual reproduction entirely beneficial. larger populations appear respond more benefits obtained through sexual reproduction smaller population sizes.


maintenance of sexual reproduction has been explained theories work @ several levels of selection, though of these models remain controversial. however, newer models presented in recent years suggest basic advantage sexual reproduction in reproducing complex organisms.


sexual reproduction allows these species exhibit characteristics depend on specific environment inhabit, , particular survival strategies employ.








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