How did food supply affect body shape in the interactive Question 4 options:

more food equals thinner body

more food equals thicker body

less food equals no change in body shape

less food equals thicker body

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

Antibiotic selection would be my answer