Answer: radiation.
- A radiation
- B convergence
- C dormancy
- D migration
Correct answer: A. radiation
Explanation: Adaptive radiation produces many species from one ancestor, as in Darwin’s finches.
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.