Whate the energy by living on the earth to feed move and reproduce all comes from what original source

Which is an example of a population?

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

Do you think the gene eef1 alpha1 supports cell theory? explain your response.