Writes a paragraph that explains why a genetic bottleneck can be an important evolutionary factor for a species

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

Compound light microscope

We are not able to see the stars. light prevents our seeing the stars. i hope it kinda : )