Final answer:
Rosch's concept of 'family resemblance' reflects the idea that members within a conceptual family display significant variation. In biological terms, this concept relates to both homologous traits derived from a common ancestor and analogous traits that arise from convergent evolution.
Step-by-step explanation:
Rosch used the term "family resemblance" to mean that concepts within a family exhibit significant variations. This term is used to describe the way that members of a conceptual category can be similar in various ways, without all members having to share a set of identical features.
It's similar to how members of a biological family share certain traits without being identical: siblings often look alike due to shared DNA, yet each sibling is unique due to the combination of genes they inherit.
In biology, this idea correlates with concepts such as homologous and analogous traits. Homologous traits arise from a common evolutionary ancestor and therefore indicate a closer genetic relationship between species, while analogous traits can appear similar due to convergent evolution but come from different evolutionary paths.