Answer: divergent evolution.
- A divergent evolution
- B convergent evolution
- C adaptive radiation
- D parallel development
Correct answer: A. divergent evolution
Explanation: Homologous organs share a common structural plan but perform different functions, indicating divergent evolution from a common ancestor.
A simple phylogenetic tree: a common ancestor branches into several descendant lineages over time, with each branch point marking a speciation event.
Concept context
Origin of life, Darwin's theory, natural selection, speciation, and evidence for evolution.