Answer: homologous organs.
- A homologous organs
- B analogous organs
- C vestigial organs
- D entirely new organs
Correct answer: A. homologous organs
Explanation: Homologous organs share a common origin but perform different functions.
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.