Answer: fittest.
- A fittest
- B largest
- C fastest
- D oldest
Correct answer: A. fittest
Explanation: Those best adapted to the environment tend to survive and reproduce.
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.