Exam 12: Adaptation and Species

Although populations of North American apple maggot flies are not geographically isolated, they appear to be in the process of diverging into two new species. Which of the following could be causing speciation between two populations in the lack of geographic isolation?

________ speciation can occur when populations of a species are separated by a physical barrier, thereby becoming geographically isolated and subsequently reproductively isolated from one another.

Match each numbered statement to one of terms listed below. -an organism's physical characteristics

Explain how a change in the depth, either a lengthening or shortening, of flowers that contain nectar eaten by a particular species of hummingbird would potentially lead to a change in the hummingbird.