A ring species evolves due to a process of speciation that unfolds when:
A) There are distinct forms of a species (subspecies) that are capable of producing fertile hybrids
B) Subspecies are arranged across a temperature gradient
C) Subspecies are arranged along a geographic gradient
D) The arrangement of the ring species is such that the two ends of the gradient themselves meet and where they do those individuals do not interbreed.

Question

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The Answer of A ring species evolves due to a process of speciation that unfolds when:
A) There are distinct forms of a species (subspecies) that are capable of producing fertile hybrids
B) Subspecies are arranged across a temperature gradient
C) Subspecies are arranged along a geographic gradient
D) The arrangement of the ring species is such that the two ends of the gradient themselves meet and where they do those individuals do not interbreed.

A Ring Species Evolves Due to a Process of Speciation