Question

darwin’s observation that organisms produce more offspring than can survive leads directly to which idea?
genetic variation
competition for resources
mutation
speciation

Explanation:

Darwin observed that organisms produce more offspring than can survive. This overproduction leads to a situation where organisms must compete for limited resources (like food, space, etc.) to survive. Genetic variation is about differences in traits, mutation is a change in DNA, and speciation is the formation of new species—none directly result from overproduction of offspring as competition for resources does.

Answer:

Competition for resources (the option labeled "Competition for resources")