On a topographic map, what does it mean when the contour lines are very close together?

Amoeba sisters video recap pedigrees

Ascientific idea becomes valid when it is what?

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.