That would be A.
A. At the midpoint of the diaphysis.
Human encroachment that has greatly reduced the prairie dog populations.
Is there anything you need help with for this problem? I need to clarify first before answering your question.
I’ve annotated your question and colour coded the answer, (the dotted line represents current bird population) and blue line represents what the population will look love after natural selection
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hope this helps :)
<u><em>" Biogeography not only provides significant inferential evidence for evolution ... are successful points to the strength of the theory or explanation."</em></u>