Darwin Quiz
Questions: 16 · 10 minutes
1. Which process was central to Darwin’s explanation of how populations become adapted over generations?
Natural selection acting on heritable variation
Sudden transformation caused by environmental need
Inheritance of traits acquired through use
Random mating without differences in reproductive success
2. Aboard which ship did Darwin make the voyage that greatly shaped his scientific thinking?
HMS Challenger
HMS Victory
HMS Endeavour
HMS Beagle
3. Which subject is addressed prominently in Darwin’s The Descent of Man?
The geological formation of the Galápagos Islands alone
Human evolution and the role of sexual selection
The selective breeding of domesticated pigeons as its only topic
The classification of barnacles without evolutionary discussion
4. A cold season favors thicker fur in a mammal population, but several warm decades later favor thinner fur. What does this illustrate about natural selection?
Selection always moves species toward one fixed ideal form
Selection permanently preserves whichever trait was favored first
Which inherited traits are favored can change with environmental conditions
Individuals choose the inherited traits their offspring will need
5. Two island bird populations have differently shaped beaks suited to different foods. Which Darwinian inference is best supported?
Each bird changed its beak during life by choosing a food
Different environments favored different inherited beak variations
Beak form cannot change across generations
Food type directly created identical mutations in every bird
6. Darwin finds closely related organisms on neighboring islands, with differences suited to local conditions. Which explanation would best fit his mature theory?
The organisms must be unrelated because their traits differ
Each organism redesigned itself during its own lifetime
An ancestral population diversified after reaching different environments
Island environments prevent inherited traits from changing in frequency
7. What is the central argument of Darwin’s On the Origin of Species?
Earth’s species appeared in their present forms at the same time
Species change over generations, with natural selection helping explain adaptation and diversification
Evolution occurs only when humans selectively breed organisms
Individual organisms transform whenever their surroundings change
8. How did Thomas Malthus’s writing help shape Darwin’s theory?
It highlighted that populations can produce more offspring than limited resources can support
It established the genetic rules governing dominant and recessive traits
It argued that geological processes happen only through sudden catastrophes
It showed that selective breeding cannot alter populations
9. A whale’s flipper, a bat’s wing, and a human arm contain similarly arranged bones despite serving different functions. Darwin would treat this mainly as evidence of what?
Common descent with modification
Traits developing because individuals need them
Species remaining permanently unchanged
Artificial selection by humans
10. Why did Darwin spend many years developing his evolutionary argument before publishing On the Origin of Species?
He had forgotten most observations from the Beagle voyage
He gathered extensive evidence and refined an argument he knew would be controversial
He was waiting for Mendel’s genetic experiments to be published
He was legally forbidden to publish scientific books
11. Where was Charles Darwin born in 1809?
Cambridge, England
Edinburgh, Scotland
Shrewsbury, England
Down, England
12. Whose independent work prompted Darwin to present his ideas on natural selection publicly in 1858?
Alfred Russel Wallace
Thomas Henry Huxley
Gregor Mendel
Charles Lyell
13. What was Darwin’s principal role during the voyage of HMS Beagle?
Ship’s captain
Naval surgeon
Official map engraver
Gentleman naturalist and companion to Captain Robert FitzRoy
14. A few insects in a population already vary in their tolerance of a pesticide. After repeated spraying, tolerant insects become more common. Which explanation best matches Darwinian selection?
Spraying made all insects stronger during their lifetimes
Every insect intentionally developed the same protection
Tolerant insects survived and reproduced more successfully
The population changed because variation disappeared before spraying
15. Why did the selective breeding of pigeons and farm animals matter to Darwin’s reasoning?
It showed that wild species never vary
It proved that breeders can create life from nonliving matter
It demonstrated that acquired habits are always inherited
It illustrated how selection acting on inherited variation can produce substantial change
16. In a beetle population, shell color varies and is inherited. Birds more easily spot pale beetles on dark soil, so darker beetles leave more offspring. Which process best explains the population becoming darker?
A deliberate response by individual beetles
Artificial selection
Inheritance through repeated use
Natural selection