Question

biogeographical evidence: each of the animals shown below is now specialized for living in specific geographical areas. despite their differences, why do they share dna with each other?
original ancestors of the camel family
modern members of the camel family
they descended from a common ancestor
they have adapted to live in the same environment

Explanation:

The animals share DNA because they descended from a common ancestor. Biogeographical evidence shows that species can evolve in different geographical areas but still retain genetic similarities from a shared origin. In this case, the camel - family members (dromedary camel, Bactrian camel, llama) have different adaptations for their specific habitats (Africa, Asia, South America respectively) but their shared DNA indicates a common ancestral lineage. The option "They have adapted to live in the same environment" is incorrect as the map shows they live in different geographical areas (Africa, Asia, South America).

Answer:

They descended from a common ancestor.