A researcher conducted an experiment on a fruit fly species in which a single population of the flies was split into two separate groups. One group was fed with a starch-based food source, and the other group was fed with a maltose-based food source. The populations remained separated with their different food sources for many generations. When the two groups were finally reunited with each other, it was observed that the fruit flies still preferred to mate with members of their original population over members of the other population that had been fed a different food source.

What process is illustrated by this experiment?

A. coevolution

B. convergent evolution

C. gene flow

D. speciation

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

What must be true for natural selection to heppen

Which of the following describes what an activator an enhancer are