[Answer] Long necks make it easier for giraffes to reach leaves high on trees while also making them better fighters in “neck wrestling” contests. In both cases which kind of selection appears to have made giraffes the long-necked creatures they are today?

Answer: Directional selection(Why: directional selection drives the average of the population in one direction in this case toward longer necks.)
Long necks make it easier for giraffes to reach leaves high on trees while also making them better fighters in “neck wrestling”…

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