The cichlid Cynotilapia afra, introduced at West Thumbi Island in Lake Malawi in the 1960s, has split into two genetically distinct populations, located at the north and south ends of the island. How can scientists determine whether these populations are now different species, according to the biological species concept?

Concept of biological species

Explanation:

Determine whether peoples from one populace will interbreed with people from the other populace when brought into one another's local environmentsAn animal category is a gathering of individual living beings that interbreed and produce fruitful, practical posterity. As indicated by this definition, one species is recognized from another when, in nature, it isn't feasible for matings between people from every specie to create prolific posterity Individuals from similar species share both outer and inward qualities that create from their DNA. The closer relationship two living beings share, the more DNA they share for all intents and purpose, much the same as individuals and their families. Individuals' DNA is probably going to be more similar to their father's or mother's DNA than their cousin's or grandparent's DNA. Living beings of similar species have the most significant level of DNA arrangement and, subsequently, share attributes and practices that lead to effective propagation

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The correct answer is c.