Seventeen-year-old ryan watches his father fix a broken part on the family car. then ryan sees that his mother gives his father lots of affection because he fixed the car. based on this experience, ryan will be more likely to fix his girlfriend's car if it breaks. that fact shows how ryan has been influenced by:

The development of simple stone tools by early hominids led to the ability to procure meat more efficiently. this in turn led to the change in diet that included larger amounts of protein. many scholars believe that this shift in diet was a significant part of how our ancient ancestors adapted so quickly to a varied set of environments, and thus were able to begin cultural development. this demonstrates the intimate connection between