Hello there!
'Parental generation' is the term which he used. Hope I helped.
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
According to given information,
Distance = 6 + 10 = 16 m
Displacement = 4 m
So, Distance - Displacement = 16 - 4 = 12 m
So, your final answer is 12 m.
Hope this helps!
Answer: to start what cycle
Explanation: