Please someone quickly help​

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Asap. this question is 100 points if you answer it question: describe the basic relationship between ocean depth and temperature seen in the graph