Answer: On the Origin of Species.
- A On the Origin of Species
- B the book Principia
- C the book The Cell
- D the book Micrographia
Correct answer: A. On the Origin of Species
Explanation: Darwin published "On the Origin of Species" in 1859.
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.