Question

1. how can dna and behavior both be used to prove speciation?

Explanation:

DNA analysis can show genetic differences between populations, indicating reproductive isolation (a key aspect of speciation). Behavioral differences, like mating rituals, can prevent interbreeding. Both genetic (DNA) and behavioral barriers contribute to the formation of new species.

Answer:

DNA shows genetic divergence and reproductive isolation. Behavior (e.g., mating behaviors) can prevent interbreeding. Together, they demonstrate speciation.