III How adaptations become common in a population Morgan s sphinx moth or Xanthopan morganii is a moth found in Madagascar that has a long proboscis The Morgan sphinx moth feeds on an orchid called Darwin s orchid which has a very long nectar producing tube and most insects cannot reach the nectar Early ancestors of Morgan s sphinx moth had a variation in the length of their proboscis some were shorter than others The moths with shorter proboscis most likely competed for food sources with other insects However the moths that had longer proboscis were able to get nectar from Darwin s orchid 10 How did this favor the moths with longer proboscis 11 What was the adaptation found in the moth example 12 Biological success is based on how many offspring are able to survive How do adaptations affect the success of a population 13 Some organisms have genes that improve their ability to survive and reproduce If the genes also help their offspring survive and reproduce then which of the following will most likely increase a The frequency of the genes in one particular individual b The frequency of the genes in the entire population c The number of genes in the species 14 Hoverflies are insects that resemble wasps but cannot actually sting What advantage does this adaptation give them 15 The type of adaptation seen in the hoverfly is known as Morgan s sphinx moth Darwin s orchid