[Campbell Biology P.559] The existence of "grolar bears" hybrids of grizzly and polar bears ... | Practice Question

The existence of "grolar bears" hybrids of grizzly and polar bears is presented in the text as an example illustrating a limitation of which species concept?

  • A: Ecological Species Concept
  • B: Morphological Species Concept
  • C: Biological Species Concept
  • D: Phylogenetic Species Concept

Explanation

The biological species concept defines species by the absence of gene flow. The existence of 'grolar bears' demonstrates that gene flow can occur between distinct species grizzly and polar bears , which limits the applicability of the biological species concept in such cases.