Answer: Lamarck's acquired characters.
- A Darwin's natural selection
- B de Vries' mutation theory
- C the modern synthesis idea
- D Lamarck's acquired characters
Correct answer: D. Lamarck's acquired characters
Explanation: Weismann's mice experiment disproved Lamarck's idea that characters acquired during life, such as shortened tails, are inherited.
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.